Pretest

Question 1

What is the most likely reason that horses and mountain goats have hooves?

Revolt · Accepted Answer

D: They have homologous structures because they have a common ancestor.

Question 2

Which lists the correct order of evolutionary history?

Revolt · Accepted Answer

D: jellyfish, reptiles, mammals

Question 3

Which of these statements best sums up evolution ?

Revolt · Accepted Answer

A: change in a population through genetic variation over time

Question 4

A scientist makes the argument that she has found DNA evidence that shows that evolution does not exist. What would her evidence have to show for her to be correct?

Revolt · Accepted Answer

D: Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related organisms.

Question 5

Which structures are similar in function, but do not indicate that the organisms are related?

Revolt · Accepted Answer

D: analogous structures

Question 6

What is the value of a transitional fossil?

Revolt · Accepted Answer

C: Transitional forms show the evolutionary steps between species.

Question 7

Biology shows us the fossil record and comparative anatomies. Chemistry shows us that organic molecules can come from inorganic matter. Geology shows us that organisms that used to live together are found on separate continents due to continental drift. Which fields of science provide evidence for evolution?

Revolt · Accepted Answer

A: biology, chemistry, and geology

Question 8

Dogs have a reduced nonfunctional digit on their paws known as a dewclaw. What is this an example of?

Revolt · Accepted Answer

C: vestigial structure

Question 9

Australopithecus is an ape that lived in trees, but could walk on two feet. How might fossils from Australopithecus provide evidence for evolution?

Revolt · Accepted Answer

B: Australopithecus  is a transitional form between apes and humans.

Question 10

Siblings have similar traits because they inherit those traits from a common ancestor. How is this similar to some evidence for evolution?

Revolt · Accepted Answer

C: Similarities can be seen among related organisms, which shows common ancestry.

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