How does evolution explain the similar legs in mammals and explain why the function differently?

How Does Evolution Explain The Similar Legs In Mammals And Explain Why The Function Differently?

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Answer 1

Answer/Explanation:

These are examples of homologous structures. These are derived from common ancestors , however, they do not necessarily perform the same function. A good example is the vertebrate forelimbs like the ones shown here.

These limbs all have the same basic pattern of bones. They inherited this pattern from a common ancestor, but they now have different functions. This is an example of divergent evolution


Related Questions

HWLPPPPPPPAHWOWAJAOAKSNSKWKEKEOEL

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Answer:

glycolose

Explanation:

Who wants brainliest? Answer those 2 questions

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Answer:

This type of natural selection occurs when there are selective pressures working against two extremes of a trait and therefore the intermediate or “middle” trait is selected for. If we look at a distribution of traits in the population, it is noticeable that a standard distribution is followed: Example:  For a plant, the plants that are very tall are exposed to more wind and are at risk of being blown over. The plants that are very short fail to get enough sunlight to prosper. Therefore, the plants that are a middle height between the two get both enough sunlight and protection from the wind.

This type of natural selection occurs when selective pressures are working in favour of one extreme of a trait. Therefore when looking at a distribution of traits in a population, a graph tends to lean more to one side: Example: Giraffes with the longest necks are able to reach more leaves to each. Selective pressures will work in the advantage of the longer neck giraffes and therefore the distribution of the trait within the population will shift towards the longer neck trait.

This type of natural selection occurs when selective pressures are working in favour of the two extremes and against the intermediate trait. This type of selection is not as common. When looking at a trait distribution, there are two higher peaks on both ends with a minimum in the middle as such: Example: An area that has black, white and grey bunnies contains both black and white rocks. Both the traits for white and black will be favored by natural selection since they both prove useful for camouflage. The intermediate trait of grey does not prove as useful and therefore selective pressures act against the trait.

Genes help to define who an individual is inside and out. In addition to visible traits like weight and eye color, psychological qualities such as personality traits, intelligence, risk of mental illness, and more have been linked to genetics.

Explanation:

This is what I could find.

1: overproduction, genetic variation, struggle to survive, and successful reproduction are 4 steps.

2: gene is a unit of heredity which is transferred from a parent to there kids(offspring). They relate to traits in people because if you’re born tall you got it from your mom/dad or their family traits.

Mr. Chavez wants his class to prepare a procedure that would demonstrate cellular diffusion. Which of the following procedures would best demonstrate cellular osmosis?

A. A procedure that uses the skins of potato left overnight in oil

B. A procedure that uses a cluster of grapes left overnight in a high concentration of salt water
C. A procedure that uses a 2-liter bottle filled with oil and water and left overnight

D.A procedure that uses a banana that has been left overnight in milk

Answers

Answer:

B

Explanation:

The second option correctly shows the process of cellular osmosis.

When the grapes would be immersed in water, the molecules of water move across the cell membrane from the region of low to high solute concentration. Due to this, the water would leave the cells and diffusion of water from the cells of the grapes. Thus, option B is the correct answer.

In conclusion, the procedure that uses a cluster of grapes left overnight in a high concentration of salt water would BEST demonstrate cellular osmosis (Option B).

Osmosis refers to the movement of a solution (often water) across a selectively permeable membrane.

This movement (osmosis) is due to the difference in solute concentrations on both sides of the semipermeable membrane.

In osmosis, water molecules move from a region of low concentration of solutes (e.g., salt) to a region of high concentration of solutes.

In conclusion, the procedure that uses a cluster of grapes left overnight in a high concentration of salt water would BEST demonstrate cellular osmosis (Option B).

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Explain the relationship between a hypothesis and a theory. Then give an example of something that would cause a hypothesis or a theory to be revised or discarded.

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Answer:

Hypothesis is a written observation, that has not been proven correct, but is written after observation of a specimen. Proving this particular hypothesis, shows the interconnectivity/ relationship between a hypothesis and a theory.

Explanation:

Simply put, a hypothesis is a written observation, which may or may not be true, while a theory is established when a hypothesis is proven correct.

AN EXAMPLE OF SOMETHING THAT COULD MAKE A THEORY TO BE REVISED:

If other laws or theories put before it controversies it.If its observations where not correctly written.If it cannot stand the test of time.If further experiments doesn't show the same result.

Hypothesis is  either written or evidence based observation but it has to be proven where as when a hypothesis is proved by doing experiments multiple times and getting same results then it is called as as scientific theory.  

What is scientific theory ?

scientific theory can be  a structured form where a group of facts can meet and  be explained by using scientific hypothesis and laws, each theory can be proved by doing experiments and applying scientific method.

Scientist will design an experiment and conduct the experiment to test  and prove that hypothesis; If the result of hypothesis is incorrect, then new hypothesis will be set and new experiment will begin.

If the result of  hypothesis is correct, repeated tests  have been done to ensure the accuracy of the result.

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Which molecules prevent cell membranes from dissolving in water?
O A. Nonpolar fatty acids
O B. Polar phosphate groups
C. Adenosine triphosphates
D. Large globular proteins

Answers

Explanation:

a nonpolar fatty acids

hope this help u

A non-polar fatty acids prevent cell membrane from dissolving in water. The correct option is A.

What is a cell membrane made of?

The cell membrane, also known as the plasma membrane, is uncovered in all cells and serves to separate the cell's interior from the outside environment.

The cell membrane is made up of a semipermeable lipid bilayer. The cell membrane controls the transport of materials into and out of the cell.

These are glycerophospholipids, which are molecules made up of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon compound that serves as the membrane lipids' backbone.

As, these non-polar fatty acids are insoluble in water, so it protect the cell membrane from water. It actually prevent the cell membrane to get dissolve in the water.

Thus, the correct option is A.

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Name and describe the five types of active transport systems.

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Answer:

Please Mark as Brainliest. Please!!!!!!!!!!

Explanation:

Definition

Active transport is the process of transferring substances into, out of, and between cells, using energy. In some cases, the movement of substances can be accomplished by passive transport, which uses no energy. However, the cell often needs to transport materials against their concentration gradient. In these cases, active transport is required.

Active transport requires energy to move substances from a low concentration of that substance to a high concentration of that substance, in contrast with the process of osmosis. Active transport is most commonly accomplished by a transport protein that undergoes a change in shape when it binds with the cell’s “fuel,” a molecule called adenosine triphosphate (ATP).

For example, one type of active transport channel in the cell membrane will bind to the molecule it is supposed to transport – such as a sodium ion – and hold onto it until a molecule of ATP comes along and binds to the protein. The energy stored in ATP then allows the channel to change shape, spitting the sodium ion out on the opposite side of the cell membrane. This type of active transport directly uses ATP and is called “primary” active transport.

Another type of active transport is “secondary” active transport. In this type of active transport, the protein pump does not use ATP itself, but the cell must utilize ATP in order to keep it functioning. This will be explained in more depth in the section on Symport Pumps below.

Lastly, active transport can be accomplished through processes called endocytosis and exocytosis. In exocytosis, a cell moves something outside of itself in large quantities by wrapping it in a membrane called a vesicle and “spitting out” the vesicle. In endocytosis, a cell “eats” something by wrapping and re-forming its membrane around the substance or item.

Each type of active transport is explained in more detail below.

Types of Active Transport

Antiport Pumps

Antiport pumps as an example of active transport

Active transport by antiport pumps

Antiport pumps are a type of transmembrane co-transporter protein. They pump one substance in one direction, while transporting another substance in the opposite direction. These pumps are extremely efficient because many of them can use one ATP molecule to fuel these two different tasks.

One important type of antiport pump is the sodium-potassium pump, which is discussed in more detail under “Examples of Active Transport.”

Symport Pumps

Symport pumps take advantage of diffusion gradients to move substances. Diffusion gradients are differences in concentration that cause substances to naturally move from areas of high to low concentration.

In the case of a symport pump, a substance that “wants” to move from an area of high concentration to low concentration down its concentration gradient is used to “carry” another substance against its concentration gradient.

One example of a symport pump – that of the sodium-glucose transport protein – is discussed below under “Examples of Active Transport.”

Sympoter pump as an example of active transport

Active transport by symporter pumps

Endocytosis

In the third type of active transport, large items, or large amounts of extracellular fluid, may be taken into a cell through the process of endocytosis.

Help Please
What is the chemical reaction of carbon dioxide (or an example of a chemical reaction of carbon dioxide)

Also, does carbon dioxide create a reactant or product?

Answers

Answer:

co2 reacts with hydrogen in a reversible reaction to form carbonic acid

Explanation:

if u want the equation lem me know

What r the 4 seasonal stages of the year ?

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Answer:

Spring, Summer, Winter, and Fall

Explanation:

Please mark me brainliest]

Answer:

Spring, Summer, Autumn (Fall) and Winter.

Explanation:

help what goes where help asap will try to mark brainliest!!​

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Go from the bottom of the food chain to the top, the grass is eaten by herbivores, the bird and frog eat insects, and the snake is a carnivore and eats the other animals.

What are the main factors in ecosystem diversity?

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Ecosystem diversity deals with the variations in ecosystems within a geographical location and its overall impact on human existence and the environment. ... An example of ecological diversity on a global scale would be the variation in ecosystems, such as deserts, forests, grasslands, wetlands and oceans.

The main factors in ecosystem diversity include the physical characteristics of the environment and the diversity of species present.

What is Diversity?

This involves the environment containing different types of species and is affected by certain factors.

The factors which affect ecosystem diversity include physical characteristics of the environment and the diversity of species present.

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A sandwich shop sells 4 veggie subs for every 5 turkey subs. The shop sold 27 subs today. How many of each kind did they sell? i need help plz !!!!!!!!!!!! due 1:00

Answers

Answer:

3 each

Explanation:

The question said 4 veggie subs for every 5 turkey subs.

So every time 5 turkey subs were sold it lead to the increase of both

One of the buffers that contribute to pH stability in human blood is carbonic acid (H2CO3). Carbonic acid is a weak acid that, when placed in an aqueous solution, dissociates into a bicarbonate ion (HCO3-) and a hydrogen ion (H+).
Thus, H2CO3 = HCO3- + H+
If the pH of the blood increases, one would expect:

(A) a decrease in the concentration of HCO3- and an increase in the concentration of H+

(B) an increase in the concentration of H2CO3 and a decrease in the concentration of HCO3-

(C) a decrease in the concentration of H2CO3 and an increase in the concentration of HCO3-

(D) an increase in the concentration of HCO3- and a decrease in the concentration of OH-

(E) a decrease in the concentration of HCO3- and an increase in the concentration of both H2CO3 and H+.

I'm not sure if it is C or D ​

Answers

Answer:

The answer is "Option C".

Explanation:

In the given question, the pH scale is used to evaluate acid or basic (alkalinity) formulas. It is nearly positive throughout the blood. Human blood has to maintain its pH at about 7.4, to prevent dramatically increased or lower changes, even though the bloodstream enters or exits acidic or essential substances.  

The buffers are essential for stabilization management. Calcium carbonate produced as carbon dioxide joins the blood system and combines with the liquid is a buffer which adds to the pH level in the human blood. It is returned to the water and distributed as a waste product until it enters the lungs, that's why choice C is correct.

What is the term for an organism that makes its own source of chemical energy?
protist
B chloroplast
decomposer
D producer

Answers

Answer:

D thxs good luck on your test

Explanation:

PLEASR HELP- 24 points!

What front brings the most severe weather?
-Cold Front
-Warm Front
-Stationary Front

Answers

Answer:

cold fonts

Explanation:

hope this helps

A mineral forms in water heated by magma inside Earth. Which statement best describes this mineral? The mineral formed through evaporation. The mineral crystallized from molten material. The mineral formed when a hot water solution cooled. The mineral likely has all the same properties as the surrounding rock.

Answers

Answer:

The mineral formed when a hot water solution cooled.

Explanation:

The mineral is formed from hot water solution heated by magma in the Earth when the water is cooled because when hot water solution is heated by magma in the Earth, it begin to cool underground, then the elements and compounds present there move out of the water solution , after these, these elements and compounds then undergo crystallisation and form minerals . Pure metals that crysralise from hot water solution is called Veins.

A mineral forms in water heated by magma inside Earth, when the hot water solution cooled.

Minerals formed from heated water by magma

A mineral is formed from hot water solution heated by magma in the Earth when the water is cooled.

When hot water solution is heated by magma in the Earth, afterwards it begins to cool underground, then the elements and compounds present in the solution move out of the water solution.

After this process, the separarted elements and compounds undergo crystallisation and form minerals. The minerals formed in this process are called veins.

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How do we determine climate change (amount of time, trends, etc)?

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Answer:

xlimate change is when the climate change due to green house effect

So, climate describes the long term pattern of weather conditions that occurs in a locality. Thermometers and rain gauges are used to collect weather data. These days temperatures are also taken by satellites to reduce the possibility of false high readings due to heat in cities. We can't take Earth's temperature directly, but we do have a lot of information from weather stations, ocean buoys and remote sensing instruments. The information lets us see changes in climate.
An ice core.
Each layer in an ice core tells scientists something about Earth's past.

3. What is the relationship between
adaptation and natural selection?

Answers

Answer:

hope it helps...

Explanation:

Evolution is not the same as adaptation or natural selection. Natural selection is a mechanism, or cause, of evolution. Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations.

Feeding relationships within a community can be represented by

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The answer to your question isrelationship

today's midterms and I just want to say good luck to you all. (we're doomed)

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Answer:

lol, good luck dude ur gonna need it.

What's the difference between inference and observation? Give examples of each.

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Answer:

A inference is a conclusion reached on the basis of evidence and reasoning.

A observation is an act or instance of regarding attentively or watching

Explanation:

Example for a inference would be - lets say you notice someone isnt acting like theirself you may infer that their not having a good day or their not in a mood

Observation example- when your doing a lab for science you may observe the different types of utensils or the effects of the object you use like oh this is blue or something

What is the function of an animal cell I really need help!

Answers

Answer: They are eukaryotic cells, meaning that they have a true nucleus and specialized structures called organelles that carry out different functions. Animal cells do not have plant-specific organelles like cell walls, which support the plant cell, or chloroplasts, the organelle that carries out photosynthesis.

Only eukaryotic cells have
cytoplasm
membrane bound organelles
DNA
ribosomes

Answers

membrane bound organelles

Ivan reads a story about a population of mice that become stranded in a dark jungle. Some mice are dark brown, while others are white. According to the process of natural selection, predict which mice would be more successful living in a dark jungle. Explain natural selection and your prediction.

Answers

Answer:

The dark brown mice would be more successful in a dark jungle since the darker color of their fur would make it hard for predators to spot them.

The process of natural selection, predict which mice would be more successful living in a dark jungle is de dark brown.

What is natural selection?

Natural selection is one of the main mechanisms of evolution. In a very simple way, we can say that natural selection is a process in which the fittest organisms are selected, survive in the environment, reproduce and pass their characteristics on to their descendants.

In this case, as it is a very dark forest, an animal with a white coat will attract more attention while an animal with a dark brown color will only be camouflaged in the environment.

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PLZZZZZZ I NEED HELP ASAP I ONLY GOT A LIL TIME PLZZ HELP :)

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Answer:

B. The first generation will not have short plants. The short trait will return in the second generation.

Explanation:

If T is for Tall and t is for short, then the first generation doesn't have any short offspring. We can rule out answer choices A and D.

The second generation results in TT, Tt, Tt, tt.

TT is a tall Offspring.

Tt is a Tall Offspring, with a small t as a recessive trait.

tt is a short offspring because both the recessive traits (t) are together.

We can rule out option C.

That leaves us with the correct answer being B. The first generation will not have short offspring, but will pass it on to the second generation, which will have a short offspring (25% chance of having short offspring).

Can someone help me please?

Answers

The answer is 2 I think I’m not sure

Consumers, or heterotrophs, take in food made by other organisms. Then they break apart the food to release its energy. How do these actions of consumers contribute to the carbon cycle?
A. Eating and breaking apart food converts carbon to other elements.
B. Eating and breaking apart food converts other elements into carbon.
C. Eating food involves taking up carbon dioxide.
D. Eating and breaking apart food releases carbon dioxide as a byproduct.

Answers

Answer:

d ? maybe , i just guessed tbh .

Answer: ya it’s D)

Explanation:

Which trait can be passed from one generation to the next by genes? A. The ability to speak German B. Red hair color C. A broken arm D. A shaved head
Plz help me ​

Answers

Answer:

Red hair color

Explanation:

i promise you im right.

Answer:

red hair color.

Explanation:

because red hair is a gene that you can get from you parent or some other family members. a shaved head you cut, speaking german is a trait YOU learn and that you don't get from a member of your family

what does photosynthesis and cellular respiration have in common?​

Answers

Photosynthesis involves the use of energy from sunlight, water and carbon dioxide to produce glucose (Sugar) and oxygen.


Cellular respiration uses glucose and oxygen to produce carbon dioxide and water.

Both use ATP (Adenosine triphosphate)

Help me answer that question and how are you supposed to know which one is the predator and the prey like how can you tell?

Answers

Answer:

predator is blue, prey is red

Explanation:

when the amount of predators increase, the blue line rises, the red line lowers. when there is more predators there is going to be a less amount of prey.

Which statement best summarizes the complete rock cycle?


1.Sedimentary rocks are weathered to form igneous rocks. Igneous rocks are melted and cooled to form metamorphic rocks.


2.Metamorphic rocks melt to form igneous rocks. Igneous rocks can be weathered to form sedimentary rocks.


3.Sedimentary rocks are the only rocks that are weathered. Igneous rocks can change to sedimentary rocks.metamorphic rocks by heat and pressure. All rocks can be melted and cooled to form igneous rocks.


4.All rocks can change into all other rocks. When rock is melted and cooled, it forms an igneous rock. When rock is under extreme heat and pressure, a metamorphic rock forms. When rock goes through stratification, a sedimentary rock is formed.

Answers

Answer:

3.Sedimentary rocks are the only rocks that are weathered. Igneous rocks can change to sedimentary rocks.metamorphic rocks by heat and pressure. All rocks can be melted and cooled to form igneous rocks.

Explanation:

Sedimentary rocks as the name implies are made up of rock sediments which are formed by weathering processes.

Igneous rocks are the rocks which gives rise to sedimentary rocks and metamorphic rocks under certain conditions such as heat and pressure.

All the type of rocks can also be melted and cooled to form back to igneous rocks.

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Please help me What are the 2 main sources of data Question 4Which of the following is unique for any given element?O the mass of a neutrono the number of neutronso the charge on the electonsO the number of protons pease answer I need the answerDid you know that chickens sometimes eat vegetables and fruits? A farmer likes to give the chickens apples to share. The farmer observes that 3 chickens eat 5 apples. What is the ratio of the number of chickens to apples? (4 points) Group of answer choices2:55:35:23:5 For a beverage, Lisa mixes cups of lemonade to cups of iced tea in a ratio of 3:7. Which of the following best describes the amount of lemonade to iced tea? (4 points)1. For every 3 cups of lemonade, there are 7 cups of iced tea.2.For every 3 cups of lemonade, there are 4 cups of iced tea.3. For every 7 cups of lemonade, there are 4 cups of iced tea. 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Select all proportional relationships that have the same ratio to that of mike and Randys age PLEASE HELP THERE ARE TWO PARTS!!The graph shows the relationship between the United States dollar andthe euro, the currency of the European Union, in December 2011. Part A:What is the constant of proportionality shown in the graph? *Exchange Rate (December 6, 2011)VA(400, 300)300Number of euros200(250, 187.50)100(120,90)100 200 300400Number of US dollarsI A composition of transformations maps pre-image EFGH to final image E"F"G"H".Trapezoid E F G H is shifted down and to the left to trapezoid E prime F prime G prime H prime. Trapezoid E prime F prime G prime H prime is reflected across the line of reflection c to form trapezoid E double-prime F double-prime G double-prime H double-prime.The first transformation for this composition is [________], and the second transformation is a reflection across line c.a 180 rotation about point Ga 180 rotation about point Ha translation down and to the lefta translation up and to the right Because government has a monopoly on the use of force, government is very dangerous. True False The Great Spirit heard his prayer. He leaned down from the sky, scooped up a great amount of earth, and made the Cascade Mountains as a wall between Ocean and the dry country. The long and deep hole left where the earth had been, Ocean soon filled with water. Today people call it Puget Sound.The people east of the mountains are still punished for their selfishness and greed. Ocean sends so little moisture over the range that they do not have all the plants that grow along the coast. But they still have the pits their grandfathers dug. They are Lake Chelan and the lakes south and east of it. The Origin of Puget Sound andthe Cascade Range,Ella E. ClarkWhat does this Plateau legend work to explain?the culture of the Plateau peoplethe organization of Plateau tribesthe wildlife of present-day Washingtonthe geography and climate of the region Match these items. Match the items in the left column to the items in the right column. 1. consumer cost of a good or service 2. market economy economy in which market forces determine prices of resources and the prices and distribution of goods and services 3. planned economy someone whose wants are satisfied by using goods and services 4. price economy in which a central authority owns productive resources and distributes goods and services 5. producer people who make goods and provide services paula hurried. stationn A into B Asif C to the D as through 18. The price of a pair of shoes was $65. Then, the price was reduced to $52..Find the percent decrease in the price of the shoes.(a) 30%(b) 13% (c) 5%(d) 25%(e) none of thesePlease show the work