Answers Science 7 B M12 2526 S2 Unit Test — Unit testQuestion 7

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Unit Test — Unit test

Question 7 of 25 • Science 7 B (M12 25/26 S2)

Which characteristic is shared by all mollusks and echinoderms?

Answer

A

live only in salt water

B

lack a backbone

C

use tube feet to move

D

have an open circulatory system

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