Vertebrates include:
A) birds
B) mammals
C) reptiles
D) all of the above
Correct Answer:
Verified
Q45: A life spent totally on land was
Q46: Ectotherms maintain a constant body temperature by:
A)internal
Q47: Mammals did not become the dominant form
Q48: Dinosaurs belong to the class:
A)Amphibia
B)Aves
C)Mammalia
D)Reptilia
Q49: An example of a nonvertebrate chordate is:
A)a
Q51: The phylum Chordata and the phylum Arthropoda
Q52: Endothermy refers to:
A)maintaining stable body temperature through
Q53: Diphyodonty refers to:
A)the development of two sets
Q54: The first jaws evolved from:
A)gill bars
B)vertebral spines
C)pectoral
Q55: The early vertebrates differed from the earlier
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