Which Group of Animals Are Living Representatives of the Theropods

question 28

Multiple Choice

Which group of animals are living representatives of the theropods, a lineage of bipedal predatory dinosaurs?

• A) birds
• B) crocodiles and alligators
• C) snakes and lizards
• D) turtles
• E) mammals

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Definitions:

Ray-Finned Fish

Jawed fish with fins supported by thin rays derived from skin; member of most diverse lineage of fishes.

Placental Mammals

Mammals that nourish their unborn offspring through a placenta, allowing for longer gestational periods and more developed young at birth.

Monotremes

Egg-laying mammals, such as the platypus and echidna, characterized by their unique reproductive system.

Marsupials

Mammals that carry and nurture their young in a pouch.