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9 Cards in this Set
- Front
- Back
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Which era is known as the "age of reptiles"?
a. Cenozoic b. Mesozoic c. Paleozoic d. Precambrian e. Cambrian |
b. Mesozoic
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Which of the following are the only extant animals that descended directly from dinosaurs?
a. lizards b. crocodiles c. snakes d. birds e. mammals |
d. birds
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Differentiation of teeth is observed in
a. sharks. b. bony fishes. c. amphibians. d. reptiles. e. mammals. |
e. mammals
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The Therapsids gave rise to
a. turtles b. lizards and snakes c. dinosaurs d. mammals |
d. mammals
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Which of the following is the most numerous reptile, in terms of species?
a. snakes b. lizards c. turtles d. alligators and crocodiles |
b. lizards
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Unlike modern birds, Archaeopteryx had
a. scaly skin b. teeth c. tail d. amniotic egg e. no feathers |
b. teeth
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Mammal hair, feathers and reptile scales are made from
a. keratin b. actin c. myosin d. collagen e. fibrinogen |
a. keratin
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Which of the following is a monotreme?
a. koala b. kangaroo c. opossum d. wombat e. echidna |
e. echidna
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What happened to the marsupial mammals in South America?
a. They became extinct due to climate chang. b. The placental mammals that lived in South America outcompeted them. c. Their reproductive systems were inefficient and they dies out. d. Placental mammals came across from North America when the 2 continents became connected and outcompeted them. e. An epidemic wiped most of them out. |
d. Placental mammals came across from North America when the 2 continents became connected and outcompeted them.
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