For the following items, match the extant vertebrate groups with the descriptions.
-Three major groups: egg-laying, pouched, and placental
A)amphibians
B)nonbird reptiles
C)chondrichthyans
D)mammals
E)birds

Question

Quizplus · Accepted Answer

The three major groups described in the prompt refer to types of reproduction in mammals: egg-laying (monotremes), pouched (marsupials), and placental (eutherians).

Answer: A
 Amphibians typically undergo external fertilization and have aquatic larvae, which hatch from eggs laid in water.

Answer: B
 Nonbird reptiles include turtles, snakes, lizards, and crocodilians. They are primarily oviparous, although some species are viviparous.

Answer: C
 Chondrichthyans are cartilaginous fishes, including sharks, rays, and chimaeras. They are oviparous or ovoviviparous.

Answer: E
 Birds are oviparous and lay eggs with hard shells. They have internal fertilization and are known for their feathers and ability to fly.

For the Following Items, Match the Extant Vertebrate Groups with the Descriptions