Select one:
a. planarian— Nematoda
b. fluke— Platyhelminthes
c. coral— Porifera
d. roundworm— Cnidaria
e. sponge— Arthropoda
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Question 7
Which of these is a bivalve?
Select one:
a. slug
b. octopus
c. earthworm
d. snail
e. oyster
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Question 8