Which is a characteristic of reptiles?
A) They have gills.
B) They are endotherms.
C) They have skeletons composed of cartilage.
D) They are ectotherms with lungs.
E) They lack a coelom.
Correct Answer:
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Q38: Sponges belong to the phylum
A) Porifera.
B) Cnidaria.
C)
Q39: Pinworms and hookworms belong to the phylum
A)
Q40: A circulatory system that keeps blood confined
Q41: Which of the following is a lobe-finned
Q42: What was most key in the transition
Q44: The function of vertebrae is to
A) protect
Q45: Which characteristic would exclude an animal from
Q46: A bony or cartilaginous structure that surrounds
Q47: A lancelet is a(n)
A) invertebrate chordate.
B) vertebrate.
C)
Q48: Which of the following is not a
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