Answers
Answer:
14. f. diffusion
15. a. excreting waste
16. b. exocytosis
17. a, endocytosis
Explanation:
14. The movement of molecules from a high concentration to a low concentration is diffusion. Active transport uses energy to move molecules against their concentration gradient (from low to high). Osmosis specifically refers to water molecules. Endocytosis is the movement of molecules inside the cells via the cell membrane engulfing it.
15. The membrane controls the substances that enter and exit the cell, therefore it is involved in excreting waste products from inside the cell.
16/17 Endocytosis is engulfing substances to bring them inside the cell. Exocytosis is the reverse process, where substances exit the cell by fusing with the cell membrane. The movement of molecules from a high concentration to a low concentration is diffusion. Osmosis specifically refers to water molecules.
Related Questions
Explain the adaptations for root hair cell
Answers
Answer:
they have thin membranes to allow diffusion of substance for short distance
they are numerous to increase the surface area of absorption
hope this helps
Individuals with high blood pressure are at a higher risk for:OOOOstrokeaneurismheart attackAll of these choices are correct.
Answers
High blood pressure can place increased pressure on the walls of the blood vessels inside the brain, increasing your chances of developing an aneurysm. Also, it forces the heart to work harder to pump blood to the rest of the body. This causes the lower left heart chamber (left ventricle) to thicken. A thickened left ventricle increases the risk of heart attack, heart failure and sudden cardiac death. Moreover, blood vessels damaged by high blood pressure can narrow, rupture or leak. High blood pressure can also cause blood clots to form in the arteries leading to the brain, blocking blood flow and potentially causing a stroke.
So the correct answer is: All of thees choices are correct.
Which endocrine gland is indicated by the arrow?
pineal gland
adrenal gland
hypothalamus
ovary
Answers
Answer:
adrenal gland
Explanation:
Answer:
adrenal gland
Explanation:
What would a difference in the bands in two different chromosomes represent?
Answers
Chromosomes are coiled structures of DNA and proteins found in the nucleus of cells.
They carry genetic information and consist of genes that determine specific traits.
Bands on chromosomes are visible when stained and viewed under a microscope. These bands appear as alternating light and dark regions.
Each band contains multiple genes, and their unique locations help distinguish between different chromosomes.
Differences in banding patterns reflect genetic variations between chromosomes. These variations indicate the presence or absence of specific genes on a particular chromosome.
Chromosome banding is a laboratory technique that involves staining chromosomes with dyes.
This technique allows for the visualization of unique banding patterns on each chromosome. It is useful in detecting chromosomal abnormalities associated with genetic disorders.
By analyzing banding patterns, scientists can gain insights into genetic diversity, inherited traits, and the identification of genetic diseases such as Down syndrome, Turner syndrome, and Klinefelter syndrome.
Chromosome banding provides a valuable tool for studying the genetics of organisms and understanding the role of genes in various biological processes.
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1) How is nondisjunction related to Down syndrome and other abnormal chromosome numbers?
2) State the differences between DNA and RNA
Pleaaseeee helllpppp :(((
Answers
2. DNA contains the sugar deoxyribose, while RNA contains the sugar ribose.
DNA is a double-stranded molecule, while RNA is a single-stranded molecule.
Choose either one ^^^
Hope this helps you.
2 A photograph shows a beetle 80 mm long. The magnification of the photograph is x 4. Calculate the real size of the beetle. (Remember to include the unit with your answer.)
Answers
=20
Therefore the real size of the beetle is 20mm long
Explanation:
Since the zoom of the photo is X4 we can conclude that we must divide by four to get the real size of the beetle
refer to the table showing genotypic frequencies of the a locus from three different populations (1 through 3). which statement is true?
Answers
The given table below shows the genotypic frequencies of the a locus from three different populations (1 through 3):-Population Number of individuals Genotype frequencyaaAaAA1 200 0.6 0.3 0.12 100 0.7 0.2 0.13 300 0.5 0.4 0.1 .The statement that is true in reference to the table showing genotypic frequencies of the a locus from three different populations (1 through 3) is:- Genotypic frequency of the aa genotype in population 1 is 0.6 .
Explanation:-Genotype is the genetic makeup of an individual. The genetic makeup refers to the composition of alleles for a given gene (locus) that an individual possesses. Genotypic frequency is the frequency of occurrence of a particular genotype in a population. It is represented as a decimal fraction or a percentage. Genotypic frequency can be calculated using the Hardy-Weinberg equation: p2+2pq+q2=1Where p and q are the frequencies of two alleles in a population.
In the given table, the genotype frequencies for the a locus from three different populations (1 through 3) are provided. Population 1 has 200 individuals. The genotype frequency for aa in population 1 is 0.6. This means 60% of the individuals in population 1 possess the aa genotype. Therefore, the statement that is true in reference to the table showing genotypic frequencies of the a locus from three different populations (1 through 3) is that the genotypic frequency of the aa genotype in population 1 is 0.6.
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what might be particularly problematic about trying to design a robot with a human-like brain and nervous system?
Answers
Since robots lack human-like emotions and intuition, it may be difficult to create robots with brains and neurological systems that resemble humans. Furthermore, physiological functions of robots are not managed by the nervous system and brain. Robots typically don't perform human-like tasks.
According to the study, modeling social dynamics, teaching social and moral standards, and developing a robotic philosophy of mind are the three main obstacles to creating social robots that actually interact with humans. The short interactions that social robots of today are built for don't happen in human relationships.
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Describe what happens to a chemical reaction with or without an enzyme.
Answers
Answer:
Without enzymes, many chemical reactions would occur at a much slower rate because the amount of activation energy required would be far greater. When molecules are involved in a chemical reaction, enzymes act as a catalyst for either breaking them down or building them up into more complex molecules.
Explanation:
Firstly, an enzyme is a chemical substance that speeds up a chemical reaction. This means that a chemical reaction with an enzyme present would be quick or happen at a faster rate.
Enzymes also help the substance undergoing the reaction to not get used up during the process.
However, if the enzyme is absent, the chemical reaction happens very slowly and also the substance undergoing the reaction gets used up during the process.
5. What is the difference between impotence and infertility?
Answers
Answer:
Impotence, which is another word for erectile dysfunction, simply refers to difficulty getting or keeping an erection that's firm enough for sexual activity. Sterility or infertility means that the body doesn't produce “good” sperm—that is, not enough sperm are produced, or the sperm don't function as they should.
some predators feed preferentially on the most abundant prey. this type of predation is
Answers
some predators feed preferentially on the most abundant prey. this type of predation is density dependent .
predation is a process by which the organism eat other organism for their food. predator process is the organism who eats the other organism are called predators and the organism which is eaten is called pray.
Predator help in maintaining the pray species pollution and keep them under control .In predation, one organism kills and consumes another. Predation provides energy to prolong the life and promote the reproduction of the organism that does the killing, the predator, to the detriment of the organism being consumed, the prey.
Predators are organisms that hunt and kill other organisms for food. The organisms that are consumed by the predators are known as the prey. Predators can be carnivores and omnivores. Lions, tigers, sharks, and snakes, all are predators.
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complete the sentences from George Bernard Shaw's the doctors dilemma with word
s that are punctuated and spelled correctly this of course does amount to a sort of working of rule of thumb( options: conscience:
conscience.
conscience
conscience; ) but it means that you'll do anything good or ( options: bad:
bad,
bad;
bad. ) provided you get enough people to keep you accountants by doing it also it is the sort of conscience that makes it possible to keep order on a pirate (options: ship:
ship;
ship
ship. ) or in a troop of bringings it may be said that in the last analysis there is no other sort of Honor or conscience in existence that the ascent of the majority is only sanction known to ethics
Answers
Answer:
The correct answers are:
1. D : conscience;
2. B : bad,
3. D : ship,
Explanation:
The first answer requires a semicolon because we have two separate sentences, this is, two independent clauses, and in this case, we use the semicolon to connect them.
The second answer requires a comma as we have an appositive that does not provide essential information, so we separate it with a coma to designate additional information and maintain the structure of the sentence complete and clear.
The third answer requires a comma before the conjunction or because the rest of the sentence means the same as what precedes it. In this case, we use a comma as a sign of equivalence, to clarify that pirate ship is equivalent to a troop of brigands.
this is the correct answer
Which part of the phospholipid bilayer is hydrophobic? Which direction does it face?
Answers
They face inward
Alexa made a diagram to compare and contrast two benefits of social behavior. The diagram shows 2 overlapping circles labeled Division of Labor and Foraging. There is a Y in the overlap. Which description belongs in the area marked "Y"? decreases reproduction rates involves collection of food divides jobs within group keeps group safe from predators.
Answers
The Venn diagram shows two overlapping circles labeled Division of Labor and Foraging. There is a Y in the overlap. The area marked "Y" is the place where both foraging and the division of labor benefits overlap. The two overlapping circles represent the benefits of social behavior of foraging and the division of labor.
The area where they overlap represents where the two benefits are connected. Both foraging and division of labor contribute to the survival of the group in the wild. The "Y" in the overlap represents the benefit of "dividing jobs within the group" as it helps in keeping the group safe from predators.
In a social setting, dividing jobs within a group is important in keeping the group safe from predators. Division of labor enables each member of the group to have a specific job that will benefit the entire group. The overlapping area of the diagram represents where both foraging and division of labor contribute to the survival of the group.
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Shark dichotomous answers
Answers
IN WHAT SITUATIONS WOULD YOU WANT TO CONSUME FAT INSTEAD OF CARBOHYDRATES FOR ENERGY PURPOSES?
I have asked this 2 times and I keep getting people saying stuff that is not good and someone just said points so please will someone help me? this is my last time asking I really need help.
Answers
Answer:
if you're going to be doing something in the cold for an extended period of time, it would be better to eat more fat in order to keep you warm and energized.
the blood-brain barrier choose one: a. aids in delivering drugs to the central nervous system. b. is the meninges surrounding the brain. c. helps prevent infection of the central nervous system. d. occurs via capillary leakiness in the central nervous system.
Answers
Option (c) is the correct answer. The blood-brain barrier helps prevent infection of the central nervous system.
Blood-brain barrier: The blood-brain barrier is a defensive mechanism that works to prevent harmful substances from entering the brain from the bloodstream. It is a selectively permeable barrier that is made up of specialized cells and is found throughout the blood vessels that supply the brain.In simpler terms, the blood-brain barrier is a complex physiological barrier that separates the blood circulating in the body from the cerebrospinal fluid (CSF) in the brain and the extracellular fluid in the brain. It ensures that the brain is protected from harmful substances, including toxins, microorganisms, and other unwanted molecules that may be circulating in the bloodstream. Therefore, the blood-brain barrier helps prevent infection of the central nervous system. Hence, option (c) is the correct answer.To learn more about The blood-brain barrier Please visit:
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Radioactive element ‘A’ decays over time to element ‘B’. Element ‘A’ has a half-life span of 5 days. If you started with 20 grams of A and 0 grams of B, how many grams of B would there be after a total of 10 days?
1) 0 grams
2) 2.5 grams
3) 5 grams
4) 7.5 grams
5) 10 grams
6) 12.5 grams
7) 15 grams
8) 17.5 grams
9) 20 grams
10) 22.5 grams
11) 25 grams
12) 27.5 grams
Answers
How do dogs get oxygen and eliminate carbon dioxide?
How do dogs keep a proper water balance?
How do dogs eliminate wastes?
How do dogs respond to their environment?
How do dogs learn and adapts?
How do turtles get and digest food?
How do turtles get oxygen and eliminate carbon dioxide?
How do turtles keep a proper water balance?
How do turtles eliminate waste?
How do turtles respond to their environment?
How do turtles learn and adapt?
How parrots get and digest food?
How do parrots get oxygen and eliminate carbon dioxide?
How do parrots keep a proper water balance?
How do parrots eliminate waste?
How do parrots respond to their environments?
How do parrots learn and adapt?
Answers
The most important function of the respiratory system is to deliver oxygen into the blood, which distributes it throughout the body, and to remove carbon dioxide from the blood. The exchange of oxygen and carbon dioxide occurs in the alveoli.
3. A waste digester, such as the Doggie Dooley is about the size of a bucket, which you bury in your yard. You open the lid, put the dog poop in, add an enzyme and water once a week. The waste liquefies and returns to the earth.
Question 20 A 2C model divides the body into two compartments known as O nerves and fat O bone and muscle OFM and FFM O fat mass and muscle
Answers
A 2C model divides the body into two compartments known as Fat Mass (FM) and Fat-Free Mass (FFM). The correct answer is option c.
Fat Mass refers to the total amount of adipose tissue in the body. Adipose tissue is primarily responsible for storing energy in the form of triglycerides. It plays a role in insulation, cushioning organs, and hormone regulation. Fat Mass can be further divided into subcutaneous fat (under the skin) and visceral fat (around organs).
Fat-Free Mass refers to all body tissues other than adipose tissue. It includes organs, bones, muscles, water, and connective tissue. Fat-Free Mass is metabolically active and contributes to various physiological functions, including movement, organ function, and metabolism.
The 2C model is used to estimate body composition by measuring the relative proportions of Fat Mass and Fat-Free Mass. This information can be useful in assessing overall health, determining nutritional needs, and evaluating changes in body composition over time.
The correct answer is option c.
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Complete question
Question 20 A 2C model divides the body into two compartments known as
a. nerves and fat
b. bone and muscle
c. FM and FFM
d. fat mass and muscle
How does the water needed to carry out photosynthesis get to leaves?
Answers
Answer:
The xylem
Explanation:
The xylem in the stem transports water and minerals from the ground up the plants, and into cells in the leaves so that photosynthesis can be carried out.
Hydrogen ions flowing through a membrane protein provide energy that joins
small molecules to make larger ones. By which type of transport do the
hydrogen ions flow?
A. Endocytosis
B. Active transport
C. Osmosis
D. Passive transport
Answers
Answer:
c. osmosis is the right answer
Answer:
Passive transport
Explanation:
3
How did scientists determine Earth has layers?
OA. through the use of earthquake waves
OB.
through deep core drilling
Oc. through x-ray analysis
OD. through the use of magnetometers
Reset
Next
Answers
Answer:
The correct answer is - A. through the use of earthquake waves.
Explanation:
The interior of the earth can not be studied or seen by digging the hole, for that scientist normally use the movement of seismic waves, from earthquakes or nuclear test explosions, are reflected, slow down, sped up bent by passing through the different layers.
Waves behave differently as they move in different layers and their material helps scientists to learn and study the layers and their constituents. It explains that the Earth's interior has a series of concentric shells, with a thin outer crust, a mantle, a liquid outer core, and a solid inner core.
Which is an example of kinetic energy?
Answers
Describe how minerals form in diagram b.
Answers
Answer:
The correct answer is - crystalization to form igneous or magmatic rocks.
Explanation:
As magma cools beneath 1300°C, minerals begin to take shape or crystalize inside it. On the off chance that that magma is, at that point engaged with a volcanic emission, the remainder of the fluid will cool rapidly to frame a porphyritic surface. Crystallization in the stone cycle alludes to the development of rock precious stones in cooling magma.
Magma cools either underground or on a superficial level and solidifies into a volcanic stone. As the magma cools, various precious stones structure at various temperatures, experiencing crystallization. For instance, the mineral olivine takes shape out of magma at a lot higher temperatures than quartz. Rocks formed from the crystallization of a fluid (liquid stone).
The correct answer is - crystalization to form igneous or magmatic rocks.
Answer:
Answer: In diagram B, the magma here is observed to be within the crust and could not come out to the surface. This signifies that the hot, rising magma, suddenly cooled down forming a huge block of mass which is considered to be an intrusive igneous body. It can be a batholith, lacolith or a pluton. This type of body is formed due to the cooling and the consolidation of hot magma.
Explanation:
A cell being observed under a microscope possesses a cell wall, plasma membrane, ribosomes and chromosome material that is not found in a nucleus. Based on this, it could be
Answers
Based on the given characteristics, the cell being observed could be a prokaryotic cell.
The presence of a cell wall, plasma membrane, ribosomes, and chromosome material not enclosed within a nucleus suggests that the cell being observed is a prokaryotic cell. Prokaryotic cells are characterized by their relatively simple structure compared to eukaryotic cells.
The cell wall provides structural support and protection to the cell, and it is a feature found in both plant cells and many prokaryotic cells. The plasma membrane surrounds the cell, regulating the passage of molecules in and out of the cell.
Ribosomes, responsible for protein synthesis, are present in both prokaryotic and eukaryotic cells. However, prokaryotic ribosomes are smaller in size compared to those found in eukaryotic cells.
The absence of a nucleus indicates that the chromosome material, which carries genetic information, is not contained within a membrane-bound nucleus. Instead, the genetic material is typically present as a circular DNA molecule in the cytoplasm of prokaryotic cells.
Overall, the combination of a cell wall, plasma membrane, ribosomes, and chromosome material not enclosed within a nucleus points towards the characteristics of a prokaryotic cell.
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In one sentence, summarize what resting metabolic rate is.
Answers
The resting metabolic rate is the amount of energy (calories) required by the body to function at the resting state. This measurement has into account basic metabolic activities, including energy (calories) used to eat.
The resting metabolic rate includes different metabolic activities:
breathingcirculation of bloodorgan functioning (e.g., digesting food)basic neurological functionsThe resting metabolic rate of the metabolism is measured in strict and steady (resting) conditions. On the other hand, the basal metabolic rate measures the minimum amount of energy (i.e., calories) required to perform the most basic life-sustaining functions.Learn more in:
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Identify the byproduct of lactic acid fermentation. (1 point)
A:oxygen
B:lactic acid
C:carbon dioxide
D:pyruvic acid
Help!
Answers
A:oxygen
B:lactic acid ✅
C:carbon dioxide
D:pyruvic acid
Help!
Fermentation operates in the absence of oxygen. The by-product formed in lactic acid fermentation is lactic acid and NAD+. Thus, option B is correct.
What is fermentation?Fermentation is referred as a biochemical and metabolic process in which the substrate is broken down in the absence of oxygen. The energy liberated in this process is much lower than the energy released through aerobic respiration.
Fermentation is an industrially important process as it is helpful in the production of several beverages and wines. Various microbes are used in this process that carry out enzymatic reactions and undergo fermentation.
Fermentation is also crucial for baking industry. The bread, biscuits, cakes etc are manufactured through fermentation process. Baker's yeast (Saccharomyces cerevesiae) is widely used in this process.
Thus, fermentation is also important in the production of cheese, several antibiotics and drugs on a mass scale.
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A population of animals has a short gestational period and travels in large groups. How will this affect the population size?
High birth rate, increase in individuals
Low birth rate, decrease in individuals
Short births, decrease in individuals
Long births, increase in individuals
Answers
Given what we know, we can confirm that if a population of animals has a short gestational period and travel in large groups, this will result in increased mating leading to higher birth rates and an increase in individuals.
How is the gestational period related to birth rates?The gestational period refers to the time it takes an organism to fully develop a newborn. This means that a pregnant female of this animal group will not take very long to give birth. This also implies a short recovery period. This results in the females being able to breed more often and thus will increase birth rates.Therefore, given that the females in the group will carry the fetus for very short amounts of time due to the short gestational periods, they will become available to breed more often and thus will result in higher birth rates and increased population size.
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Answer: The answer is (High birth rate, increase in individuals) A.
Explanation: I took the test got it right.
Layer of meninges which is in contact with the spinal cord is called
A dura mater
B pia mater
C arachnoid mater
D corpora quadrigemina
Answers
Option B: Pia mater is the layer of meninges which is in direct contact with the spinal cord.
Your brain's surface and the surface of your spinal cord are securely bound together by a thin layer called your pia mater, which is the innermost layer. This layer is perforated by numerous blood arteries that deliver blood to the brain region. It aids in keeping cerebrospinal fluid contained. The pia mater in your spinal cord aids in keeping the cord rigid.
Your brain and spinal cord (central nervous system) are covered and protected by three membrane layers called meninges. The dura mater, arachnoid mater, and pia mater are three membranes that wrap and protect your brain. They also serve as a support system for lymphatics, blood vessels, neurons, and the cerebrospinal fluid that surrounds your central nervous system.
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