Match each step of the scientific method on the left with the statement it describes on the right.
(Example: 1 & D)
Steps of Scientific Method:
1. Make an observation
2. State the problem
3. Identify variables
4. Create a hypothesis
5. Design an experiment
6. Collect Data
7. Draw a conclusion
Statements:
a. Why aren’t the plants in my kitchen growing?
b. I will use three of the same type of plants. I will give plant A no water for one month. I will give Plant B five ounces of water daily for one month. I will give Plant C two ounces of water daily for one month. All plants will have access to direct sunlight for 6 hours a day.
c. When I water my plants with five ounces of water daily, they will grow and maintain large, healthy leaves.
d. The plants in my kitchen aren’t growing.
e. Will the amount of
Answers
The scientific method is a research method that consists of observations, measures, experimentation, analysis, and verification of a hypothesis. Matches: 1d, 2a, 3f, 4e, 5b, 6g, 7c.
---------------------------------
The scientific method is a research method that consists of systematic observations, measures, experimentation, analysis, and verification of a hypothesis. It is based on reproducibility and refutability.
When conducting an experiment, you need to consider,
Definition and problem statement. The question for which there is not an answer yet. A question the investigator wants to answer.Theoretical framework. Antecedents from other investigations. Previous knowledge about the study object is always required for a better understanding.The main goal of the study is basically what the investigator wants to find out.Hypothesis formulation. The researcher makes a hypothesis to predict or make a conjecture -not verified and which requires corroboration- about what is going on or expected to happen. Identification of the study groups, and involved variables -independent, dependent, and control-.Methodology description. Steps needed to get data.Results. It includes data collection and analysis. This step involves testing the observations.Discussion and Conclusion, through which the hypothesis might be rejected or accepted.According to this framework, we can answer the question
1. Make an observation
d. The plants in my kitchen aren’t growing.
2. State the problem
a. Why aren’t the plants in my kitchen growing?
3. Identify variables
f. The amount of water my plants are getting and how much the plants grow.
4. Create a hypothesis
e. Will the amount of water I give my plants affect their growth?
5. Design an experiment
b. I will use three of the same type of plants. I will give plant A no water for one month. I will give Plant B five ounces of water daily for one month. I will give Plant C two ounces of water daily for one month. All plants will have access to direct sunlight for 6 hours a day.
6. Collect Data
g. After one month I see that Plant A did not grow and its leaves are brown. Plant B’s stem has grown by 4 inches and its leaves are large and green. Plant C has grown by 1 inch and has small green leaves.
7. Draw a conclusion
c. When I water my plants with five ounces of water daily, they will grow and maintain large, healthy leaves.
-------------------------
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Answer:
1.d
2.a
3.f
4.e
5.b
6.g
7.c
Explanation:
I got it right and wanted to simplify it for you!!!
Related Questions
which of the following is FALSE?
a. sex-linked traits can affect females, but it’s rare when it happens
b. autosomal disorders aren’t sexist: they affect males and females just the same
c. sex-linked disorders happen because x and y chromosomes are not homologous
d. autosomal disorders affect all chromosome pairs
e. sex-linked disorders can be inherited in the x chromosome of both mom and dad
Answers
Answer:
option C is incorrect
Explanation:
Because sex chromosomes don’t always come in homologous pairs, the genes they carry show unique, distinctive patterns of inheritance.
as ambient temperature decreases, metabolic rate in an ectotherm decreases to maintain body temperature.
Answers
The order is False.
In Ectotherms, decrease in ambient temperature causes body temperature to decrease, that causes a decrease in Metabolic rate.
What are ectotherms?Any animal that is considered to have cold blood, or whose ability to regulate body temperature depends on environmental factors like sunlight or a heated rock surface. Ectotherms are organisms whose internal physiological sources of heat play a small or almost insignificant role in regulating body temperature. Such organisms depend on heat sources in their surroundings, which enables them to have incredibly efficient metabolic rates. Fish, amphibians, reptiles, and invertebrates are all ectotherms. Endothermic organisms include human. This suggests that humans are less dependent on the external environmental temperature than ectothermic (poikilothermic) animals like fish and reptiles.Learn more about the Ectotherms with the help of the given link:
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uscoco offers dothing made wath Mentrech, a fabric that sboorts moisture and retains heat from the body. The dothing is very lightweight, while stil beeping people warm. No other store Camns Heattech
Answers
USCOCO offers clothing made with Mentrech, a fabric that supports moisture and retains heat from the body. The clothing is very lightweight while still keeping people warm. No other store can match Heattech.
Heattech is a proprietary technology developed by the Japanese company Uniqlo. This technology incorporates special fibers into clothing that trap heat and retain it, providing warmth without adding bulk. The clothing is also moisture-wicking, which means it keeps the wearer dry by pulling sweat away from the body and onto the outer surface of the fabric.USCOCO's clothing made with Mentrech fabric offers similar benefits to Uniqlo's Heattech technology. Mentrech is a fabric that is also designed to trap heat and keep people warm while remaining lightweight. It also supports moisture, which means it wicks sweat away from the body, keeping people dry.
USCOCO's clothing made with Mentrech fabric is an excellent alternative to Uniqlo's Heattech technology. The fabric provides similar benefits of moisture-wicking and heat retention while remaining lightweight. This makes USCOCO's clothing comfortable and easy to wear while still keeping the wearer warm.
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what is the percentage of cytosine in wheat ?
Answers
Answer:
22.8%
Explanation:
Osmosis is the diffusion of water from areas of low solute concentration to high solute concentration through a selectively permeable membrane.True or False
Answers
The osmosis is the process which molecules of a solvent tend to pass through a semipermeable membrane from a solution less concentrated into a more concentrated to balance the concentrations in the environments. Therefore, the sentence is true about the osmosis process.
What cells of the eye are important for edge detection/contrast?
Answers
Edge detection and contrast are important visual features that allow us to perceive and distinguish different objects and shapes in the visual scene, and these visual features are processed by a network of cells in the retina, including the bipolar cells and the ganglion cells.
Bipolar cells are the second-order neurons in the retina, which receive inputs from the photoreceptor cells and transmit signals to the ganglion cells. Bipolar cells play an important role in edge detection and contrast by enhancing the differences in light levels across adjacent regions of the retina, which allows us to perceive sharp boundaries between objects.
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What are some effects of homeostasis based on the environmental stimuli
Answers
Some effects of homeostasis based on the environmental stimuli is sweating during hot days and shivering during cold days.
What is homeostasis?
Homeostasis is the process by which the body maintains a fairly constant internal environment.
Homeostasis helps the body to response to environmental stimuli.
Example of homeostasis in response to environmental stimuli include:
when the weather is cold, the body responds by producing more heatwhen the weather condition is hot, the body respond by producing sweat which helps to cool down the bodyIn conclusion, homeostasis helps the body to maintain internal equilibrium
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the action of the repressor on the expression of the lac operon is an example of: group of answer choices positive control negative control
Answers
The action of the repressor on the expression of the lac operon is an example of negative control.
Operon: A set of genes transcribed under the control of an operator gene. More specifically, an operon is a segment of DNA containing adjacent genes including structural genes, an operator gene, and a regulatory gene. An operon is thus a functional unit of transcription and genetic regulation.Both mechanisms are present in the lac operon. Because expression is often restricted by an active repressor (the lac repressor) that turns off transcription, it is a negative control system. The lac repressor attaches to the operator region and inhibits transcription from taking place.
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Tongue rolling is dominant to not being able to roll your tongue. Mr. Chonko can roll his tongue, and
for the three
his genotype i Tt. Mrs. Chonko cannot roll her tongue. What are the possible outcomes
Chonko daughters? *Use letter T.
Genotypes
Phenotypes
Percent
Answers
We don't allow inquiries longer than 32 words, therefore "Genotypes" and any following terms were ignored. The ability to rolling one's tongue is still a dominant trait (R); people with the genetic condition are unable to do so. however, his mother might.
Why am I unable to use my tongue?
An allele of said gene known as the dominant allele is responsible for the capacity to roll one's tongue. One or more copies of said dominant gene confer the ability to twist one's tongue. A person who is born with four recessive alleles is unable to bend their tongue.
What is the likelihood that their offspring will roll their tongues?
Each child has a 50% probability of carrying the tongue-rolling heterozygous genotype and a 50% chance of carrying the Tongue rolling genotypes are homozygous recessive. If a child is heterozygous, due to total dominance, it will exhibit the phenotypic of a tongue roller.
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We don't allow inquiries longer than 32 words, therefore "Genotypes" and any following terms were ignored. The ability to rolling one's tongue is still a dominant trait (R); people with the genetic condition are unable to do so. however, his mother might.
Why am I unable to use my tongue?An allele of said gene known as the dominant allele is responsible for the capacity to roll one's tongue. One or more copies of said dominant gene confer the ability to twist one's tongue. A person who is born with four recessive alleles is unable to bend their tongue.
What is the likelihood that their offspring will roll their tongues?Each child has a 50% probability of carrying the tongue-rolling heterozygous genotype and a 50% chance of carrying the Tongue rolling genotypes are homozygous recessive. If a child is heterozygous, due to total dominance, it will exhibit the phenotypic of a tongue roller.
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Cuál es la función de los ácidos nucleicos?
Answers
Answer:
¿Cuál es la función de los ácidos nucleicos?
Explanation:
Las funciones de los ácidos nucleicos tienen que ver con el almacenamiento y la expresión de información genética. El ácido desoxirribonucleico (ADN) codifica la información que la célula necesita para fabricar proteínas.
Answer: Los ácidos nucleicos son uno de los ácidos más importantes para todos los seres vivos, pues la función de los ácidos nucleicos, radica en el aporte de la información genética de los mismos. Sin duda alguna, el ADN y el ARN, los cuales son uno de los tipos de este ácido, son vitales para el organismo y la vida celular.
What are the 4 main types of weather?
Answers
Answer:
There are many different types of weather, but the four main types are:
Thunderstorms: These are characterized by heavy rain, lightning, and thunder. They are caused by the rising and cooling of warm, moist air, which forms thunderclouds.
Hurricanes/Tropical Storms: These are large, rotating storms that form over warm ocean waters. They are characterized by strong winds, heavy rain, and storm surges.
Winter storms: These are storms that occur during the winter months and are characterized by snow, sleet, freezing rain, and strong winds.
Droughts: Droughts are prolonged period of dry weather, with little or no precipitation. It can be caused by various factors such as high pressure systems or La Niña events.
Explanation:
It's important to note that these are general categories, as there are many variations of each type of weather, and even overlapping between them. Weather phenomena such as tornadoes, dust storms, and fog are other examples of specific weather types.
The three main types of weather are sunny, overcast, and stormy. the different types of weather that we frequently experience as a result of the global environmental system.
What types of weather exist?The weather is the atmosphere's current state at a specific location and moment. Depending on the quantity of sunshine, temperature, clouds, wind, and rain, the weather changes every day. Seasons and climate have a major impact on weather. The five types of weather are sunny, overcast, wind, rainy, or stormy.
For kids, what is the weather?Weather is defined as the quality of the weather and the atmosphere outside, such as chilly and cloudy. In addition to wind and rain, the weather may produce some beautiful sky phenomena like rainbows, lightning, and sunsets.
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How long does it take for a leather boot to decompose?
Answers
Leather boots can take up to 50 years or more to decompose.
This is because leather is a natural material made from animal skin that is treated with chemicals to prevent decomposition. The chemicals used in the tanning process create a barrier that slows down the breakdown of the leather. The rate of decomposition can also depend on factors such as the environment and the type of leather used.
In general, leather products can take a long time to decompose and can have a significant impact on the environment if not properly disposed of or recycled.
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hereditary spherocytosis (hs) is a disorder of red blood cells that causes the cells to be smaller and spherical instead of having the usual flattened, biconcave shape. the average diameter of normal red blood cells is 7.2μm, and the average diameter of red blood cells in a person with hs was found to be 6.7μm. the normal red blood cell has an average surface area of 136μm2 and an average volume of 91μm3.
Answers
Answer:
Hereditary spherocytosis (HS) is a disorder of red blood cells that causes the cells to be smaller and spherical instead of having the usual flattened, biconcave shape. The average diameter of normal red blood cells is 7.2μm, and the average diameter of red blood cells in a person with HS was found to be 6.7μm. The normal red blood cell has an average surface area of 136μm² and an average volume of 91 μm². Which of the following provides an accurate calculation of the surface area to volume ratio of an HS red blood cell, as well as a prediction of its effect on the efficient transferring of oxygen compared to a normal red blood cell? a. The ratio is 0.45, and the cells are more efficient at transferring oxygen. b. The ratio is 1.12, and the cells are less efficient at transferring oxygen. c. The ratio is 0.89, and the cells are less efficient at transferring oxygen. d. The ratio is 141, and the cells are more efficient at transferring oxygen.
The ratio is 0.89, and the cells are less efficient at transferring oxygen.
What is hereditary spherocytosis?Hereditary spherocytosis (HS) is a genetic disorder that affects the shape of red blood cells. Red blood cells are responsible for carrying oxygen to the body's tissues, and they have a characteristic flattened, biconcave shape that allows them to move easily through the blood vessels and deliver oxygen to the tissues.
In people with HS, the red blood cells are smaller and more spherical than normal, which can cause problems with their function. The smaller size of the red blood cells in people with HS can lead to an increased number of red blood cells being produced in an attempt to compensate for the reduced oxygen-carrying capacity. This can lead to an excess of red blood cells in the blood, known as polycythemia, which can cause the blood to become thick and viscous.
HS is caused by mutations in genes that are involved in the production and function of red blood cells. The disorder is inherited in an autosomal dominant pattern, which means that a person only needs to inherit one copy of the mutated gene to develop the condition. HS is typically diagnosed in childhood and can be treated with medications, blood transfusions, or surgery.
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Endangered Species
Research an endangered species. Include an image of this species. Discuss the following questions: Approximately how many are left? When is the estimated time they will be extinct? What is the major cause of their future demise?
Vulnerable Species Research a vulnerable (threatened) species. Include an image of this species. How many are there left or have reappeared? What is being done to help them come back? What was the cause of their decline or demise?
Answers
a. Endangered Species: African Elephant: The African elephant is a majestic species that is facing extinction due to various factors. Approximately 415,000 African elephants remain in the wild, with their population declining by 60% over the last 75 years.
b. According to the International Union for Conservation of Nature (IUCN), the African elephant is classified as vulnerable, and it is estimated that if current trends continue, they could be extinct within the next few decades.
The major cause of their future demise is the illegal wildlife trade, particularly the demand for ivory. Poaching for ivory has led to the killing of tens of thousands of elephants each year, resulting in severe population declines in many African countries. In addition to poaching, habitat loss and fragmentation, human-wildlife conflict, and climate change also pose significant threats to African elephants.
To help African elephants, several conservation efforts are underway. These include anti-poaching measures, habitat restoration, and community-based conservation programs. In addition, many countries have banned the trade in ivory, although enforcement of these laws can be challenging.
Vulnerable Species: Snow Leopard: The snow leopard is a vulnerable species that is found in the high-altitude mountain ranges of Central and South Asia. Approximately 4,000 to 6,500 snow leopards remain in the wild, with their population declining by 20% over the last three decades. According to the IUCN, the snow leopard is classified as vulnerable due to habitat loss and fragmentation, poaching, and retaliatory killings by herders.
The major cause of their decline is habitat loss and fragmentation due to human activities such as mining, agriculture, and infrastructure development. In addition, poaching for their pelts and body parts is also a significant threat to snow leopards. Retaliatory killings by herders who lose their livestock to snow leopards are also a major cause of their decline.
To help snow leopards, several conservation efforts are underway. These include habitat restoration, anti-poaching measures, and community-based conservation programs. In addition, the Snow Leopard Trust and other organizations are working to educate local communities about the importance of snow leopards and to promote sustainable development practices that minimize negative impacts on snow leopard habitat.
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In the 1970s, the U.S. government passed laws to protect the water supply.
Which of the following best describes something these laws were intended to
do?
OA. Protect wetlands from future development
OB. Return all wetlands to their original conditions
OC. Create new wetlands in each state
OD. Convert lakes into marshes and swamps
Answers
Answer:
A. Protect wetlands from future development
Why is phosphorus ultimately more limiting for plants than nitrogen?
A.plants can take up both N and P from the air but P is harder to convert to organic forms
B.P fertilizer is hard to find, but N fertilizer is common
C.there are more molecules in cells which need P than need N
D.there are bacteria which can fix atmospheric N2 gas but there is no atmospheric pool of P
E.bacteria can fix phosphorus from soil sources providing P to plants
Answers
The correct answer is D: there are bacteria which can fix atmospheric N₂ gas but there is no atmospheric pool of P.
Phosphorus is ultimately more limiting for plants than nitrogen because there is no atmospheric pool of phosphorus like there is for nitrogen. While plants can take up both nitrogen and phosphorus from the soil, nitrogen can also be fixed by bacteria in the soil or symbiotic relationships with plants, from atmospheric nitrogen gas (N₂). In contrast, there are no known biological processes that can fix atmospheric phosphorus, meaning that the only source of phosphorus available to plants is the soil or other external sources.
Furthermore, phosphorus is a key element in many important biological molecules, such as DNA, RNA, and ATP. Plants require a lot of phosphorus to grow and reproduce, and in many ecosystems, the available phosphorus can become limiting, especially in soils that are low in organic matter or have been heavily weathered. In contrast, while nitrogen is also an important nutrient, it is used in smaller quantities and can be more easily recycled by plants and soil microbes.
Overall, the lack of an atmospheric pool of phosphorus and the high demand for phosphorus in important biological molecules make it a limiting factor for plant growth and can have important implications for ecosystem productivity and nutrient cycling
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What protein does the sonic hedgehog gene encode
Answers
Answer:
Normal Function. The SHH gene provides instructions for making a protein called Sonic Hedgehog. This protein functions as a chemical signal that is essential for embryonic development. Sonic Hedgehog plays a role in cell growth, cell specialization, and the normal shaping (patterning) of the body.1
What are cell biology, genetics, and
molecular biology?
Answers
Answer:
Explanation:
Cell biology (also cellular biology or cytology) is a branch of biology studying the structure and function of the cell, also known as the basic unit of life. Cell biology encompasses both prokaryotic and eukaryotic cells and can be divided into many sub-topics which may include the study of cell metabolism, cell communication, cell cycle, biochemistry, and cell composition.
Genetics, study of heredity in general and of genes in particular. Genetics forms one of the central pillars of biology and overlaps with many other areas, such as agriculture, medicine, and biotechnology. Learn more about the history, biology, areas of study, and methods of genetics.
Molecular biology, field of science concerned with studying the chemical structures and processes of biological phenomena involving molecules. In particular, researchers focus on DNA, RNA, and proteins and their interactions. As a result, the field is closely related to genetics and biochemistry
The study of heredity is a field of genetics and cell biology. The DNA itself (molecular genetics), entire populations, or whole creatures are investigated at various levels of genetics (population and evolutionary genetics).
What relation between cell biology and molecular biology?Two branches of biology are cell biology and molecular biology. The study of cellular mechanisms is a focus of the subject of cell biology.
As a result, it primarily concerns the functions and architecture of the cell. The study of molecular level mechanisms is a focus of the science of molecular biology.
Therefore, cell biology, genetics, and molecular biology are interconnected.
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Pesticides sprayed on the plants in fields become
drip onto the soil.
when they settle and
O A. ammonia
O B. pollutants
C. nutrients
D. acid rain
Answers
Answer:
pollutants
Explanation:
have a nice day :)
Answer:
pollutants
Explanation:
Which of the following reflects changes in Homo erectus from Homo habilis?smaller teeth and bigger brow ridgesbigger teeth and smaller brow ridgesthinner cranial bonea rapid decrease in body size
Answers
The primary change that reflects the transition from Homo habilis to Homo erectus is smaller teeth and bigger brow ridges.
Homo erectus evolved around 1.9 million years ago and displayed several distinct physical characteristics compared to its predecessor, Homo habilis.
Homo erectus had smaller teeth due to dietary changes, including the consumption of more meat, which required less chewing force. Additionally, they used tools for food processing, which lessened the need for large, powerful teeth.
Bigger brow ridges were another significant feature in Homo erectus, serving as a reinforcement for the skull structure. This development suggests an adaptation to the increased physical demands of their lifestyle, such as hunting and the use of more complex tools.
Though not as prominent, thinner cranial bones were also observed in Homo erectus, which can be attributed to a more efficient brain structure. This characteristic is consistent with their increased cognitive abilities, such as problem-solving and social behavior.
A rapid decrease in body size was not observed during this evolutionary transition; instead, Homo erectus exhibited a more robust body structure, increased height, and an overall increase in body size compared to Homo habilis. These features allowed Homo erectus to better adapt to various environments and improve their chances of survival.
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The following reflects changes in Homo erectus from Homo habilis is a. smaller teeth and bigger brow ridges
The transition from Homo habilis to Homo erectus is marked by several significant changes. Among the options provided, the one that best reflects this change is smaller teeth and bigger brow ridges. As Homo erectus evolved from Homo habilis, they developed smaller teeth, which is an indicator of a shift in their diet to include more meat and less plant material, this dietary change was likely a result of their increased use of tools and hunting techniques
Additionally, Homo erectus is characterized by more prominent brow ridges compared to Homo habilis, which is a feature related to the overall shape of their skull. The other options - bigger teeth and smaller brow ridges, thinner cranial bone, and a rapid decrease in body size - do not accurately represent the evolutionary changes between Homo habilis and Homo erectus. In fact, Homo erectus had a more robust and larger body size than Homo habilis, which enabled them to adapt to different environments and expand their range across the globe. So therefore the correct answer is a. smaller teeth and bigger brow ridges, is reflects changes in Homo erectus from Homo habilis.
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PLEASE HELP!!!
ITS DUE RIGHT NOW!
Answers
Sodium ions will move out of the cell until equilibrium is attained; option A.
What is osmosis?Osmosis is the movement of water molecules across a semipermeable membrane from a region of low solute concentration to a region of high solute concentration until equilibrium is attained.
Considering the cell and the solution in which it is placed in;
Therefore, sodium ions will move out of the cell until equilibrium is attained.
In conclusion, osmosis helps to maintain homeostasis.
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The vesicles that form between the two plant daughter cells are small buttles of phospholipid membrane formed by the Golgi apparatus . When these vesicles fuse , what do they become?
Answers
When the vesicles formed by the Golgi apparatus fuse between two plant daughter cells, they become the cell plate.
During cell division in plant cells, a structure called the cell plate forms between the two daughter cells. The cell plate is composed of vesicles derived from the Golgi apparatus. These vesicles contain components such as cell wall materials, membrane proteins, and other substances needed for cell division. As the vesicles fuse together, they merge with each other and with the existing plasma membrane, gradually expanding and forming the cell plate.
The fusion of the Golgi-derived vesicles allows for the deposition of new cell wall material and the synthesis of a new plasma membrane, ultimately separating the two daughter cells and completing the process of cytokinesis. Therefore, the vesicles formed by the Golgi apparatus become the cell plate through fusion, contributing to the growth and division of plant cells.
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Which of the following agreements allocated 7.5 million acre-feet of water to each basin of the Colorado river?
Boulder canyon project act
Mexican water treaty
Upper Colorado river basin compact
Colorado river compact
Answers
Answer:
Colorado river compact
I hope this helps you
:)
Colorado river system is used by Americans as drinking water and to support livelihood. Colorado river compact agreements allocated 7.5 million acre feet of water to the Colorado river.
What is Colorado river compact?The Colorado River Compact of 1922 divided this river into two basins: including Upper Basin and the Lower Basin.
This established the allotment for each basin and provided a framework for management of the river for coming years.
Colorado river compact allocated 7.5 million acre feet of water to each basin of the Colorado river
Thus, the correct option is D.
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Could someone pls help
Answers
Answer:
Please Provide more information, but generally you can use any measuring tools. If its volume, the formula is V = W * H * L
Explanation:
Turner syndrome is on a chromosome?
if so, which one?
What's wrong with it?
Answers
Answer:
X chromosomes.........
Answer:X chromosomes
Explanation:
Turner syndrome, a condition that affects only females, results when one of the X chromosomes is missing or partially missing. Turner syndrome can cause a variety of medical and developmental problems, including short height, failure of the ovaries to develop, and heart defects.
In the Lysozyme Activity portion of this exercise, lysozyme will be added to a microbial culture. Predict what you will observe in this activity if your culture is affected by the action of lysozyme O A decrease in absorbance will be observed over time, An increase in absorbance will be observed over time An increase in turbidity will be observed over time. A change in color will be visible in the tube
Answers
A decrease in absorbance will be observed over time," is the correct answer.
If the culture is affected by the action of lysozyme, a decrease in turbidity will be observed over time. Lysozyme is an enzyme that degrades the cell wall of bacteria, causing the cells to lyse or rupture. As a result, the number of intact bacterial cells in the culture will decrease, leading to a decrease in turbidity. The decrease in turbidity can be measured by a decrease in absorbance at a specific wavelength using a spectrophotometer. Therefore, option A, "A decrease in absorbance will be observed over time," is the correct answer.
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PLS ANSWER NEED HELP!!!!!!!!!
If an uncharged piece of metal touches a positively charged glass rod, the charge is transferred by
A. friction.
B. conduction.
C. reduction.
D. induction.
Answers
Draw the phospholipid bi-layer and the structures that make transport possible + which direction the water will flow and why?
Answers
Water transport through the membrane occurs by simple diffusion (osmosis) and facilitated diffusion (through aquaporins), following its osmotic gradient. In the exposed case, water moves from the outside of the cell to the inside.
How do water molecules move through the membrane?
Water can move through the membrane in two ways: simple diffusion and facilitated diffusion. Both are passive transport and do not need energy to occur.
Osmosis is the movement of water molecules through the membrane following its osmotic gradient. Molecules cross the membrane in favor of their concentration gradient.
Osmosis is a simple diffusion process in which molecules' motion is slow and depends on small openings between lipids. When lipids move, they can leave spaces through which water molecules move and cross the membrane.
Some epitheliums in the organism, like the absorptive or secretive, need to transport water faster than by simple diffusion, so they use aquaporins. This is the facilitated diffusion of water.
Aquaporins are channel transmembrane proteins that help water move water faster and in higher concentrations from one side of the membrane to the other. These tissues can respond better to changes in osmotic gradients, facilitating fluid transport.
In the attached image, you will find both types of passive transport. Water molecules will move from the more diluted solution to the more concentrated solution concerning the solute.
Outside the cell, there are more water molecules and fewer solute molecules than inside the cell.
Inside the cell, there are more solute molecules and fewer water molecules.
So, water will move from the outside toward the inside to equilibrate concentrations on both sides of the membrane. It will move in favor of its osmotic gradient.
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please help me also I need friends
Which characteristics belong to all members of the domain Eukarya? Check all that apply.
have a cell wall
are unicellular
are multicellular
have a nucleus or nuclei
have a cell membrane
Answers
Answer: "Which characteristics belong to all members of the domain Eukarya? Select all that apply."
Explanation: "All of the characteristics that belong to all the members of the domain Eukarya would be three things: they are multicellular, they have a nucleus or nuclei, and they have a cell membrane. Hence, out of the options given above, Options C, D, and E would be the best to support this."
What is a galaxy?
(Writing Question)
Answers
Answer:
A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity.
Explanation:
hope this helps
Answer:
a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
Explanation: Hope I could help... :)