Question 1

Oxygen in the molecules that make up teeth comes from the water and food that an animal ingests.Additionally,carbon isotopes incorporated into the teeth and the shape of teeth can indicate what type of food an animal consumes.What "tooth evidence" would support the hypothesis that Indohyus spent a great deal of its life near or in the water and grazed on plants? Briefly explain your answer.

Accepted Answer

The answer of Oxygen in the molecules that make up...

Question 2

Carpal tunnel syndrome happens when the median nerve in a person's hand is compressed or squeezed,causing pain in the fingers.When the condition is severe enough,a surgeon can correct it by cutting through the transverse carpal ligament that is putting pressure on the nerve; this cutting of the ligament does not adversely affect the person's ability to use his or her hand or fingers.What does this suggest about the trait of having a transverse carpal ligament? Briefly explain your answer.

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The answer of Carpal tunnel syndrome happens when the median...

Question 3

Dogs have vestigial digits called dewclaws.Describe the most likely origin of these structures.

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The answer of Dogs have vestigial digits called dewclaws.Describe the...

Question 4

A fossil is found in Africa and South America but nowhere else in the world.What does this tell us about this organism?

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The answer of A fossil is found in Africa and...

Question 5

Dana finds a plant on the southeastern coast of North America and a very similar plant on the northwestern coast of Africa.Upon evaluating their DNA sequence similarity,she determines they had a common ancestor.How long ago should Dana predict that the common ancestor existed,and where should she expect to find fossil evidence of it or transitional forms? Support this prediction.

Accepted Answer

The answer of Dana finds a plant on the southeastern...

Question 6

Human embryos have webbing between their fingers and toes,but genes turn on during development that cause this webbing to dissolve before birth.Tiktaalik and other early amphibians had lobed fins or limbs.This evidence supports the hypothesis that humans and amphibians had a ________ in fish.

Accepted Answer

The answer of Human embryos have webbing between their fingers...

Question 7

Explain how an intermediate fossil can provide evidence for the lineage of current species.

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Question 8

Dolphin embryos have both forelimbs,which will become the flippers,and hind limbs,which will not develop.Explain how this supports the conclusion that dolphins are related to humans.

Accepted Answer

The answer of Dolphin embryos have both forelimbs,which will become...

Question 9

Briefly propose how it could be possible that the cultivated vegetables Kohlrabi,Brussels sprouts,cabbage,cauliflower,broccoli,and kale are all the same species,Brassica oleracea (common wild mustard).

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The answer of Briefly propose how it could be possible...

Question 10

Continental drift is the ________ of Earth's landmasses through geologic time.

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Question 11

Although they are protected in many countries,humans still hunt elephants for their ivory tusks.A mutation that results in tuskless elephants is increasing in frequency in some elephant populations.Is this an example of artificial or natural selection? Support your answer.

Accepted Answer

The answer of Although they are protected in many countries,humans...

Question 12

A population of grasshoppers,ranging in color from bright green to greenish-tan,live in a lush green grassland; their coloring helps to camouflage them in their environment and helps them hide from predators.Over the course of several years,a severe drought kills off the grasses,leaving mostly dry,tan-colored sand and topsoil with sparse green vegetation.Predict what the surviving population of grasshoppers will look like in the changed environment.Explain your answer and indicate which evolutionary process has occurred.

Accepted Answer

The answer of A population of grasshoppers,ranging in color from...

Question 13

Fish typically have eyes on the sides of their heads.The embryos of amphibians,birds,and mammals begin with their eyes on the sides of their heads,but the eyes move toward the center of the head during development.What does this suggest about the common ancestor of these diverse animals? Provide additional supporting evidence from your reading.

Accepted Answer

The answer of Fish typically have eyes on the sides...

Question 14

DNA is the genetic (hereditary)material found in all living things on planet Earth.The genetic code is the same for everything from bacteria to plants and humans; this is evidence that the great diversity of life evolved from a ________.

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The answer of DNA is the genetic (hereditary)material found in...

Question 15

A friend states that "evolution is just a theory because it does not have supporting evidence." Evaluate this statement,including a list of the types of evidence used in drawing your conclusion.

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Question 16

The study of organisms prior to birth or hatching is called ________.

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Question 17

The E.coli populations that survived the selective pressure of growing at the warmer temperatures did so because of ________ present in their DNA.

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The answer of The E.coli populations that survived the selective...

Question 18

Placing a human gene into a plant produces the same protein as would be produced in a human.Some of the genes in plants are similar to human genes; others are very different.What does this information indicate about the relationship between humans and plants?

Accepted Answer

The answer of Placing a human gene into a plant...

Question 19

The geographic locations where an organism (or its fossils)can be found are described as the species' ________.

Accepted Answer

The answer of The geographic locations where an organism (or...

Question 20

Evaluate the DNA sequences presented below to determine which of the organisms (B,C,or D)shares the most closely related ancestor to organism A.Which organism shares the least closely related ancestor to A? Support your answer with DNA sequence similarity evidence from the figure that represents the DNA sequence for a single protein found in all four organisms.

Accepted Answer

The answer of Evaluate the DNA sequences presented below to...

Quiz 11: Evidence for Evolution