Question 1

Which of the following characteristics is unique to vertebrates among chordates?

Accepted Answer

Vertebral column composed of individual vertebrae

Question 2

A scientist discovers a fossil with a backbone, jaws, and paired appendages. To which group does this organism most likely belong?

Accepted Answer

Cartilaginous fish

Question 3

Which of the following is NOT one of the five major classes of vertebrates?

Accepted Answer

Cephalochordates

Question 4

Which anatomical feature is shared by all jawed vertebrates but NOT by jawless vertebrates?

Accepted Answer

Paired fins or limbs

Question 5

The amniotic egg was a key evolutionary innovation because it:

Accepted Answer

Provided a self-contained aquatic environment for the embryo

Question 6

Which adaptation is most directly responsible for the ability of birds to sustain flight?

Accepted Answer

Hollow bones reducing body weight

Question 7

Which of the following is a distinguishing feature of mammals?

Accepted Answer

Production of milk by mammary glands

Question 8

A researcher is comparing Old World monkeys and New World monkeys. Which trait would help her distinguish between the two groups?

Accepted Answer

Presence of a prehensile tail in New World monkeys

Question 9

Which of the following statements about apes is correct?

Accepted Answer

Apes lack tails and have a larger brain relative to body size compared to monkeys

Question 10

In a phylogenetic tree of primates, which group is most closely related to humans?

Accepted Answer

Apes

Question 11

Which of the following best describes the evolutionary significance of jaws in vertebrates?

Accepted Answer

Jaws enabled vertebrates to exploit a wider range of food sources

Question 12

A mutation affects the development of the amnion in a reptile embryo. What is the most likely consequence?

Accepted Answer

The embryo will not be protected from desiccation

Question 13

Which of the following is a derived trait that distinguishes mammals from other amniotes?

Accepted Answer

Hair

Question 14

A zoologist observes an animal with the following features: opposable thumbs, no tail, and a large brain. To which group does this animal most likely belong?

Accepted Answer

Apes

Question 15

Which of the following is a correct sequence of evolutionary events in chordate history?

Accepted Answer

Development of vertebral column → development of jaws → development of amniotic egg

Question 16

Which feature is present in all chordates at some stage of development?

Accepted Answer

Notochord

Question 17

A bird species is found to have denser bones than other birds. What is the most likely impact on its lifestyle?

Accepted Answer

It will be less efficient at flight and may be more terrestrial

Question 18

Which of the following statements about primate diversity is accurate?

Accepted Answer

Primates include lemurs, monkeys, and apes

Question 19

Which of the following best explains why the amniotic egg was crucial for vertebrate colonization of land?

Accepted Answer

It allowed embryos to develop without water loss in terrestrial environments

Question 20

A patient is diagnosed with a genetic disorder that prevents the development of paired appendages. Which vertebrate group would this patient most closely resemble?

Accepted Answer

Jawless vertebrates

The Evolution of Vertebrate Diversity (Chapter 19): Study Notes

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드