When researchers videotaped the body of a dead whale on the bottom of the ocean, it was rippling with the activity of many jawless scavengers inside the carcass. These jawless scavengers would have been
A) hagfish.
B) lampreys.
C) coelacanths.
D) skates.
E) ray-finned fishes.
Correct Answer:
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Q1: Although adult tunicates are stuck to the
Q2: All chordates are vertebrates.
Q3: The amphibian heart has
A) two separate atria
Q4: Sharks
A) have bony skeletons.
B) lack jaws.
C) have
Q6: Which of these statements about sharks is
Q7: Jaws are believed to have evolved from
Q8: Defining characteristics of chordates are
A) segmentation, dorsal
Q9: In vertebrates, what is the embryonic structure
Q10: Which of the following is a characteristic
Q11: Which represents the correct order of evolution
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