What does the term "tetrapod" mean?
A) egg-laying
B) living on land
C) living a double life
D) having four feet
Correct Answer:
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Q31: A feature that freed reptiles from dependence
Q32: A feature unique to mammals includes _.
A)the
Q33: A characteristic that is shared by snakes
Q34: While on an archaeology expedition, you unearth
Q35: Swim bladders _.
A)contain gills
B)are required for fish
Q37: At a natural history museum, you see
Q38: Rays are a type of _.
A)tunicate
B)cartilaginous fish
C)jawless
Q39: Among vertebrates, the unique feature of lampreys
Q40: Where did humans first appear?
A)South America
B)Africa
C)Asia
D)Europe
Q41: The process of biological evolution often allows
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