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The class __________ is composed of vertebrates having eel-like bodies,a biting mouth with two rows of teeth,and numerous slime glands.
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Q2: The tuatara<br>A)is found in southwestern United States.<br>B)is
Q5: Shark reproduction and development involves<br>A)clearing a bottom
Q10: Modification of the pharyngeal slits for first
Q11: The larvae of echinoderms have _ symmetry.
Q15: Teleost fishes have a type of tail
Q21: The blood vessel that provides oxygen to
Q45: _ is the porous plate on the
Q50: A frog skeleton<br>A)has a vertebral column consisting
Q57: Darwin observed earthworm behavior where a worm