Atoms of two different elements must have o ferent
electrical charges.
numbers of neutrons.
o atomic numbers.
O energy levels.
Answers
Answer:
atomic numbers
Explanation:
In order for two atoms to be different, they have to have a different number of protons. Protons are represented by the atomic number. Thus, atoms of two DIFFERENT elements must have different atomic numbers.
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Related Questions
HELP FAST!!!!!!!!!!!!!!!!!!!
Answers
RR (round peas) and rr (wrinkled peas), The heterozygous peas have genotype Rr which when crossed will have RR, Rr, Rr and rr. Therefore, 50% of the off springs will be heterozygous.
What is a punnett square?
The genotypes of a certain cross or breeding experiment are predicted using the Punnett square, a square diagram. It bears Reginald C. Punnett's name, who developed the method in 1905. Biologists use the figure to calculate the likelihood that a child will have a certain genotype.
When two heterozygotes are crossed, the anticipated genotype ratio is 1 (homozygous dominant): 2 (heterozygous): 1. (homozygous recessive) or 1:2:1.
R r
R RR Rr
r Rr rr
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Which of the following is directly affected by changes in the ratio of charged/uncharged tryptophan trna? terminator formation in e. colitrpr repressionlevels of anti-traptrpb expression
Answers
Based on your question, the process directly affected by changes in the ratio of charged/uncharged tryptophan tRNA is terminator formation in E. coli.
This is because the availability of charged tryptophan tRNA influences the formation of the terminator structure in the mRNA, which in turn regulates the transcription of the trp operon.
When tryptophan levels are low, the terminator structure is not formed, allowing for the expression of genes involved in tryptophan synthesis.
Conversely, when tryptophan levels are high, the terminator structure forms, halting transcription and conserving cellular resources.
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what formed the alps mountains
Answers
Answer:
The Alps arose as a result of the collision of the African and European tectonic plates, in which the western part of the Tethys Ocean, that was formerly in between these continents, disappeared.
Answer:
The mountains were formed over tens of millions of years as the African and Eurasian tectonic plates collided. Extreme shortening caused by the event resulted in marine sedimentary rocks rising by thrusting and folding into high mountain peaks such as Mont Blanc and the Matterhorn.
Explanation:
What does the term mutation mean in regards to human genetics?
Answers
Answer:
A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.
Explanation:
A mutation is a change in a DNA sequence
proteins are made at the ?blank
Answers
Answer:
below
Explanation: Ribosomes cell
dilation of the pupils is controlled by the ______ division of the nervous system.
Answers
Answer: the sympathetic nervous system. or somatic
Explanation: the sympathetic nervous system detects if you are in danger and if you are it activates a fight or flee system.
The sympathetic and parasympathetic nervous systems work together to maintain balance and regulate bodily functions. However, in response to danger or stress, the sympathetic division becomes dominant to prepare the body to face the perceived threat.
The dilation of the pupils is controlled by the sympathetic division of the nervous system. The sympathetic division is responsible for the body's fight or flight response, which prepares the body to either flee or confront danger when it is perceived.In response to danger, the sympathetic nervous system stimulates the adrenal glands to release the hormone adrenaline into the bloodstream. Adrenaline then activates the sympathetic nervous system and increases the heart rate, dilates the pupils, and causes the bronchioles in the lungs to dilate.
These effects are all part of the body's response to stress and danger.In contrast, the sympathetic division of the nervous system is responsible for the body's rest and digest response. This division of the nervous system conserves energy and slows down various bodily functions, such as heart rate and breathing rate.
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What produce of photosynthesis is stored in chemical bonds
Answers
The product of photosynthesis that is stored in chemical bonds is energy in form of ATP that is stored in glucose molecules, which eventually, after their catabolism, can be used to perform other cellular tasks, such as nourishment and growth.
We have to consider that photosynthesis uses the following reactants and products to occur:
Which of the following is made of cells?
Which of the following is made of cells A:rock B:snowflake. C:rain drop. D:leaf
Answers
Biomes often occur in latitudinal bands due to temperature differences between the equator and the poles. True False
Answers
The statement "Biomes often occur in latitudinal bands due to temperature differences between the equator and the poles" is True.
A biome is a vast area of Earth that has a specific climate and vegetation. Biomes are defined by the climate conditions and the animals and plants that live there. There are different kinds of biomes on Earth. They range from the frigid polar ice caps to tropical rainforests and deserts in the dry heat.
The latitudinal bands between the poles and the equator have different temperatures. As a result of this difference, biomes are formed based on these latitudinal temperature variations. Biomes are shaped by temperature, precipitation, and altitude. Plants, animals, and other living things are all affected by the environment in which they live.
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Help me please :')
it's right below
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Answers
Answer:
Respiratory
Explanation:
The student is using Respiratory muscles!
which correctly describe axonal transport? multiple select question. it involves transport of proteins within the axon (i.e. synaptic knob enzymes or proteins that maintain the axolemma). it is bidirectional (retrograde and anterograde transport). it is a type of transport that occurs only in anaxonic neurons.
Answers
Axonal transport is a crucial process in neurons that involves the movement of proteins within the axon. It is a bidirectional process, encompassing both retrograde and anterograde transport.
Axonal transport plays a vital role in maintaining the functionality and integrity of neurons. It allows for the transportation of essential proteins, including synaptic knob enzymes and proteins that help maintain the axolemma, throughout the entire length of the axon. This ensures proper communication between neurons and enables the axon to respond to various signals and stimuli.
The transport process is bidirectional, meaning that it occurs in both directions along the axon. Anterograde transport refers to the movement of proteins from the cell body towards the synaptic terminals, while retrograde transport involves the transport of molecules from the terminals back to the cell body. This bidirectional nature allows for the delivery of newly synthesized proteins to the appropriate locations within the axon and facilitates the removal of damaged or unnecessary proteins.
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One moth population carries three alleles at a genetic locus: X1, X2and X3. X1is dominant to X2and X3; X1produces red antennae. X2is co-dominant to X3; X2X2produces yellow antennae, X3X3produces white antennae, and X2X3produces light yellow antennae. The phenotypes in a population are as follows: 0.04 white; 0.16 light yellow; 0.16 yellow; 0.64 red.Assuming that this population is in Hardy-Weinberg equilibrium, what is the frequency of the X3allele in this population
Answers
Answer:
The correct answer is - 0.20
Explanation:
According to Hardy Weinberg equation under specific conditions the frequencies of the allele in the gene in a given population remain constant. Thus according to this frequencies of allele and genotype will remain the same through the generation unless there will be no evolutionary influence.
It helps us to predict the genotype frequencies in a large population. If there are two alleles having allelic frequencies p and q and we know equation of probability and frequencies add to 1
p2+2pq+q2=1
The X3X3 genome produces white antennae. Now Phenotypic frequency of the white antennae is 0.16 or 0.04 in the whole population. Hence the frequency of X3 should be a square root of 0.04 i.e, 0.20.
Essay Question: Which two species are more closely related?
Answers
Answer:
mannimals;humens and animals
Explanation:
which change would lead to higher carbon dioxide levels in the atmosphere
A. An increase in photosynthesis
B. An decrease in animal
C. An increase in the burning of fossil fuels
D. An decrease in the destruction of forests
Answers
An increase in the levels of fossil fuels results in higher carbon dioxide levels in the atmosphere. So the correct option is C.
What are fossil fuels?The components of fossil fuels are decaying plants and animals. These fuels may be burnt to provide energy and can be found in the crust of the Earth. An example of fossil fuel is coal, as well as oil and natural gas.
Coal is a substance that is typically found in sedimentary rock formations, which are collections of rock, dead plant and animal materials, and layers of silt. A chunk of coal must contain more than 50% fossilized plant material.
Shale is one sedimentary rock type that contains oil in its native form. The thick oil that may be used to generate gasoline is created by heating this substance. Typically, pockets of natural gas can be found atop oil deposits. Additionally, sedimentary rock strata devoid of oil might contain it. Methane is the main component of natural gas.
Therefore, an increase in the burning of fossil fuels will result in higher carbon dioxide levels in the atmosphere. So the correct option is C.
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Come up with another myth about the classification of organisms. Then, give two to three reasons why the myth is untrue. Use complete sentences and support your answer with evidence, using your own words.
6. Your myth:
Fact:
Evidence:
Answers
A myth about the classification of organisms and two to three reasons why the myth is untrue are:
Myth: All organisms can be classified into just two categories: plants and animals.Why the myth is untrue?This myth is untrue for a few reasons:
There are more than two categories of organisms: While plants and animals are two of the major categories of organisms, they are not the only ones. Other categories include fungi, protists, and bacteria, which are all distinct groups of organisms with their own unique characteristics.Not all plants and animals are the same: Within the categories of plants and animals, there is a great deal of diversity. There are many different types of plants (e.g., trees, shrubs, flowers) and animals (e.g., mammals, birds, reptiles) with their own unique characteristics.Lastly, the classification of organisms is based on evolutionary relationships: The classification of organisms is based on the evolutionary relationships between different groups of organisms. This means that organisms are classified based on their shared ancestry and the evolutionary changes that have occurred over time.
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Put the following evolutionary steps in order. Start with the oldest event as #1, progress through the most recent event as #4. Vascular flowering plants evolve (angiosperms) Vascular non-seed plants evolve Vascular seed plants evolve (gymnosperms) Norrascular plants evolve In our module on Biomes we learned the foundations for terrestrial, freshwater, and marine biomes. Let's bring it all together and make sure we understand the essential terminology and characteristics. Match each term with its best deseription. This may take some tine to make all of these matches - go shoity, neview shides 6 nokes; and check your work Adense forest, fourd around 0 -10 degrees tathude A. River Continuarn Concept Conbination of broadieas deciducus and coniferous evergreen species, common B. Tropical sivarifa around New York and eastem USS C. Tundra Earth's most northern temestral biome- 1. Subtropical desert Vegetated wiver banks that influence frest water ecclogy M. Oceancizone W. Temperale grassiand Latgely destroyod and converted to agricutimal tonds, this beme of monty ground cover plarts had toigh soi fertlly due to extenevive plant roots Ali of the lespic and lotic systemis that eventually combine into one highoider fiver that enghes into the ocean Amethod of classifying wery tiver in the wodid according to As plyscal a ecological
Answers
The evolutionary steps in order are:
1. Vascular non-seed plants evolve
2. Vascular seed plants evolve (gymnosperms)
3. Vascular flowering plants evolve (angiosperms)
4. Non-vascular plants evolve
The correct order of the evolutionary steps is as follows: The first step is the evolution of vascular non-seed plants. These plants possess specialized tissues for conducting water and nutrients but do not produce seeds. Examples include ferns and horsetails.
The next step is the evolution of vascular seed plants, known as gymnosperms. Gymnosperms have vascular tissue and produce seeds that are not enclosed in a fruit. Examples include conifers like pine trees and spruces.
The third step is the evolution of vascular flowering plants, also known as angiosperms. Angiosperms are the most diverse group of plants and produce flowers and fruits. They have specialized structures for sexual reproduction and enclose their seeds within fruits. Examples include roses, apple trees, and grasses.
The final step is the evolution of non-vascular plants, often referred to as bryophytes. These plants lack true vascular tissue and include mosses, liverworts, and hornworts. It is important to note that these evolutionary steps occurred over millions of years, with each group building upon the innovations of the previous group, leading to the diverse plant kingdom we see today.
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This biotic factor in the photograph characterizes which ecosystem? It is a picture of racoons on a tree branch or something A. bog B. oak forest C. aphotic zone D. subalpine fir forest
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Anabolic pathways have which of the following characteristics? Select all that apply. O They are usually spontaneous chemical reactions O They decrease the entropy of the organism and its environment. O They consume energy to build up polymers from monomers. O They release energy by degrading polymers to monomers
Answers
Anabolic pathways have which of the following characteristics:
They decrease the entropy of the organism and its environment.They consume energy to build up polymers from monomers.Anabolism is the process of synthesizing small chemical molecules into larger molecules while catabolism is the process of breaking down large molecules into smaller molecules.
Anabolic reactions reduce the entropy of the environment and organisms, whereas catabolic reactions increase the entropy of the environment and organisms.
Anabolic reactions help make polymers so energy is needed. Catabolic reactions are the opposite of anabolic reactions, i.e. produce monomers from polymers, which produce energy.
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In Cattle, long horns are dominant to short horns, and cows that are true breeding for long horns are more desirable than short horns. A farmer has a long-horned male cow. What kind of cross could the farmer do to ensure that his cow is homozygous dominant (true-breeding) and not heterozygous for horn length? Show all your work using a Punnett square.
Answers
Most cattle became wild after arriving in the New World. Natural selection forces allowed them to re-evolve old survival qualities that had been forcibly bred out of their European forefathers. Longer horns enabled them to protect against wild predators.
What breed of cow has the longest horns?The Texas Longhorn is an American beef cow breed distinguished by its large horns, which can reach more than 8 feet (2.4 meters) from tip to tip. It is derived from cattle transported to the Americas by Spanish conquistadors from the Iberian Peninsula between the period of Christopher Columbus' Second Expedition and 1512. The breed is still utilized as a meat stock today, while many Texas ranchers preserve herds primarily for the connection to Texas history. This breed is utilized for much more in other regions of North America. Longhorn cattle have a high survival instinct and can locate food and shelter in adverse weather conditions.
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How do landfills contribute to global warming?
a. They keep people from recycling.
b. Animals become dependent on landfills for resources.
They take up valuable space.
C.
d.
They produce methane, a greenhouse gas.
Answers
landfills are a factor in global warming. A greenhouse gas they create is methane. human-related greenhouse gas emissions. Leaks form natural gas systems or the raising of cattle are two human activities that release methane.
The implications of global warmingThis warming is a result of human activities, particularly the burning of fossil fuels, which raises the levels of heat-trapping greenhouse gases in the atmosphere.
Were we able to halt global warming?Yes. However, by lowering human emissions with heat-trapping gases plus soot (also known as "black carbon"), we may limit the amount the global warming and moderate its rate.
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what elements would you expect to lose one electron
A. Potassium
B. Sodium
C. Fluorine
D. Chlorine
Answers
Answer:
SodiumExplanation:
The cation produced in this way, is called the sodium ion to distinguish it from the element. The outermost shell of the sodium ion is the second electron shell, which has eight electrons in it.
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HOW ARE VIRUSES AND ARCHAEA DIFFERENT
Answers
Answer:
Virus and Bactria are different from each other as: Virus are smaller than bacteria. Virus are non-living whereas bacteria are living. Viruses use host genome machinery for cell division and bacteria proliferate on their own.
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Explanation:
Climate changes cause a drought. There is no food to collect. To survive, the animals must become predators, catch and kill prey for food. Which group(s) would you expect to survive and reproduce, passing on the traits to future offspring?
A) Group A
B) Groups A and C
C) Groups A, C, and E
D) None of the groups
Answers
C) Groups A, C, and E.
Since the climate changes have caused a drought and there is no food to collect, animals that are able to adapt their behavior and become predators to catch and kill prey will have a higher chance of survival. Therefore, individuals in Group A (the animals that become predators) would have an advantage.
Additionally, Groups C and E are not explicitly mentioned in the question, but since they are not excluded, it can be assumed that they also have traits that enable them to survive and reproduce in the given situation.
Hence, individuals in Groups A, C, and E would be expected to survive and pass on their traits to future offspring.
5. Suppose you are a Pennsylvania farmer who has learned that the government is offering incentives to farmers to help reduce fertilizer runoff into the Chesapeake Bay. What types of approaches described in this chapter might you be willing to try, and why?
Answers
As a Pennsylvania farmer, I would be willing to try various approaches to help reduce fertilizer runoff into the Chesapeake Bay.
Various approaches include implementing Best Management Practices (BMPs) like precision agriculture, cover cropping, and buffer strips. I would also consider developing a nutrient management plan, adopting conservation tillage practices, participating in government incentive programs, and collaborating with other stakeholders. These actions aim to optimize nutrient usage, prevent soil erosion, and protect water quality in the Chesapeake Bay.
These practices help to maintain soil structure and reduce erosion, which can prevent nutrient-rich topsoil from being washed away by rainfall or irrigation. Cover cropping and buffer strips can help reduce soil erosion and nutrient runoff by providing ground cover and filtering runoff water.
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“Silty loam” contains a higher proportion of silt than the common 40% sand, 40% silt, and 20% clay. Is this imbalance always a bad thing?
Always; high silt soils drain poorly.
No; higher silt levels are usually preferred to the common balance.
Sometimes; however, some crops thrive in soils with high silt levels.
Yes; high silt levels make the soil infertile.
Answers
Answer:
Sometimes; however, some crops thrive in soils with high silt levels.
Explanation:
Answer:
it is c
Explanation:
1. How do organisms obtain and use the energy they need to live and grow?
Answers
Answer: Through their Respitory and Digestive Systems.
Explanation: Organisms breathe in order to get necessary oxygen into the body as well as consume foods and liquids in order to get all the other nutrients required to make energy. Energy is created with these nutrients through individual cells in a form called ATP.
Base your answer to the following question on the data table and on your knowledge of biology. The data table shows the amount of oxygen that will dissolve in freshwater and seawater at different temperatures. The amount of oxygen is expressed in parts per million (ppm). State how the oxygen-holding ability of freshwater varies with changes in temperature. Answer in a complete sentence to earn credit.
Answers
As a result, the concentration of dissolved oxygen in freshwater decreases as temperature increases, making it more difficult for aquatic organisms to obtain the oxygen they need for respiration.
What is Temperature?
Temperature is a measure of the degree of hotness or coldness of an object or substance relative to another object or substance. It is a physical property that is related to the average kinetic energy of the particles (such as atoms and molecules) that make up the object or substance. The higher the temperature, the greater the kinetic energy of the particles, and the faster they move.
Based on the data table and our knowledge of biology, the oxygen-holding ability of freshwater decreases as temperature increases. This is because as water temperature increases, its ability to hold dissolved gases like oxygen decreases. As a result, the concentration of dissolved oxygen in freshwater decreases as temperature increases, making it more difficult for aquatic organisms to obtain the oxygen they need for respiration.
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Kidneys remove what kind of waste from the body?
Answers
Answer:
Healthy kidneys filter about a half cup of blood every minute, removing wastes and extra water to make urine. The urine flows from the kidneys to the bladder through two thin tubes of muscle called ureters, one on each side of your bladder. Your bladder stores urine.
Explanation:
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Answer:
they remove the waste called urea
3)lisa is working on a science project. her task is to answer the question: "does rogooti (which is a commercial hair product) affect the speed of hair growth". herfamily is willing to volunteer for the experiment. a)describe how lisa would perform this experiment. identify the control group, and the independentand dependentvariablesin your description.
Answers
In an experiment, the independent variable influences the dependent one. Independent variable: Hair product rogooti. Dependent variable: Speed of hair growth
What are the dependent and independent variables?
Before conducting an experiment, you need to define variables. Usually, there are several variables involved, and many of them can influence the results, so you need to discriminate the variables you are interested in from the ones you are not.
There is a variable that you, as a researcher, change to observe how these modifications affect the results. This is one of the variables you are interested in and is the INDEPENDET variable.
There is another variable that turns out to be affected by the change you provoked in the independent variable. You are also interested in this one because you want to know how it responds to these changes. This is the DEPENDENT variable because it will respond to any change in the independent one.
Finally, all the remaining variables that you are not really interested in, but might influence the results, need to be controlled so they do not affect your experiment. These variables are kept constant and equal in all the involved experimental and control groups. These are the CONTROLLED variables.
What are the control and the experimental group?You also need to define the groups you will be working with.
There is a group to which you will expose to the independent variable, this is, to the treatment. These individuals will be affected by the change you make in the independent variable. This is the EXPERIMENTAL group.
There is another group that should always be present. This group does not receive the treatment. It is significant because it can reflect any other variable affecting the experiment that you missed to consider. This is the CONTROL group.
In the exposed example,
We will assume Lisa's familymembers are her parents, a brother, and a sister.
Experiment duration: one month
She needs to test if this product affects the speed of hair growth so she will choose two groups: a control group and an experimental group.
The control group ⇒ father and sister ⇒ Usual product.The experimental group ⇒ mother and brother ⇒ Rogooti.
Every Monday at 8:00 for four weeks, Lisa will record the lengths of all the family members' hair.
Once the month is complete, she will analyze the results by comparing the recorded measures. This is how she will get to know if there was a difference between the control and the experimental group, and hence, if rogooti increases or not the speed of hair growth.
If the product works, the experimental group will show more centimeters of new hair in comparison with the control group.
Independent variable: Rogooti productDependent variable: Speed of hair growth
If it works, the new product will influence or affect the speed at which the hair grows.
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What is true about one strand of DNA?
It contains many genes.
It contains many pieces of RNA.
It contains many chromosomes.
It contains many proteins.
Answers
Answer:
It contains many genes.
Explanation:
Genes are region in DNA that code for stuff. Thus, one strand of DNA has many genes.