Which vertebrate group has a three-chambered heart?
A) Ray-finned fishes
B) Lobe-finned fishes
C) Birds
D) Mammals
E) Amphibians
Correct Answer:
Verified
Q36: Lampreys differ from other vertebrates because they
Q37: Why have populations of many ray -finned
Q38: A shark is a(n)
A) invertebrate chordate.
B) jawless
Q39: Lungfishes are classified as
A) cartilaginous fishes.
B) ray-finned
Q40: The skeletons of rays and skates are
Q42: Amphibians are not especially successful land -dwellers
Q43: Which of the following is TRUE of
Q44: To prevent dehydration, reptiles have
A) moist, slime-covered
Q45: Why donʹt reptilian embryos dry out in
Q46: Why canʹt amphibians be entirely terrestrial?
A) They
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