Question 1

Which of the following is a derived trait that distinguishes tetrapods from their lobe-finned fish ancestors?

Accepted Answer

Limbs with digits

Question 2

The transition from aquatic to terrestrial life in vertebrates required several adaptations. Which of the following is NOT one of these adaptations?

Accepted Answer

Retention of pharyngeal gill slits in adults

Question 3

Which group is most closely related to tetrapods according to the phylogenetic tree provided?

Accepted Answer

Dipnoi (lungfishes)

Question 4

What is a major disadvantage for amphibians due to their permeable skin?

Accepted Answer

Increased risk of dehydration

Question 5

Which of the following best describes the larval stage of a frog?

Accepted Answer

Aquatic, herbivorous, with gills and tail

Question 6

The amniotic egg is a key adaptation for life on land. Which of the following is NOT a function of the specialized membranes in the amniotic egg?

Accepted Answer

Facilitating external fertilization

Question 7

Which of the following is a correct match between an amphibian order and its characteristic?

Accepted Answer

Order Apoda – legless

Question 8

Why are amphibians particularly vulnerable to environmental changes such as pollution and climate change?

Accepted Answer

They rely on aquatic environments for reproduction

Question 9

Which of the following evolutionary innovations allowed amniotes to colonize drier terrestrial habitats?

Accepted Answer

Production of eggs equipped with an amnion

Question 10

Which of the following is a derived character of mammals?

Accepted Answer

Production of milk

Question 11

Birds are considered to be a subgroup of which larger group based on phylogenetic evidence?

Accepted Answer

Archosaurs

Question 12

Which of the following is a weight-saving adaptation for flight in birds?

Accepted Answer

Hollow bones

Question 13

Which of the following statements about human evolution is correct?

Accepted Answer

Humans and chimpanzees share a common ancestor

Question 14

Which of the following is a correct pairing of a mammalian group and a unique trait?

Accepted Answer

Marsupials – young develop in a pouch

Question 15

Which of the following is a derived character of primates?

Accepted Answer

Forward-looking eyes for depth perception

Question 16

Which of the following best explains why feathers are not unique to birds?

Accepted Answer

Feathers evolved in the early Triassic, before birds appeared

Question 17

Which of the following is a correct statement about the evolutionary history of vertebrates?

Accepted Answer

Ray-finned fishes evolved before tetrapods

Question 18

Which of the following is a plausible consequence of the extinction of amphibian species due to chytrid fungus?

Accepted Answer

Disruption of local food webs and ecosystem balance

Question 19

Which of the following is NOT a characteristic of reptiles?

Accepted Answer

External development of the embryo in water

Question 20

Which of the following best describes the evolutionary significance of Tiktaalik?

Accepted Answer

It represents a transitional form between lobe-finned fishes and tetrapods

Tetrapods and Amphibians: Evolution, Structure, and Diversity

Study Guide - Practice Questions