Reptiles were the first animals to
A) have back bones.
B) lay shell-covered eggs.
C) be covered by dry scales.
D) both A and B
E) both B and C
Correct Answer:
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Q19: Courtship displays are important evolutionary phenomena because
Q20: The general intellectual climate of a culture
Q21: One remaining mammalian species that lays eggs
Q22: Lizards,snakes,and turtles are
A) reptiles.
B) amphibians.
C) vertebrates.
D) both
Q23: Mammals evolved directly from
A) reptiles.
B) fish.
C) amphibians.
D)
Q25: Australopithecines,the first hominins,are thought to have evolved
Q26: The first hominins are thought to have
Q27: Animals with dorsal nerve cords are called
A)
Q28: Prosimians,hominins,and apes are all
A) old-world monkeys.
B) new-world
Q29: Well preserved 3.6-million-year-old footprints of 1.3-meter tall,small-brained
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