Multiple Choice
A group that is often considered among the vertebrates but is thought by some scientists to be a sister group to the vertebrates includes the _______, which produces large amounts of slime as a defense mechanism, has three small accessory hearts, and does not possess stomach or jaws.
A) lamprey
B) hagfish
C) eel
D) slug
E) salp
Correct Answer:
Verified
Correct Answer:
Verified
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