Which is true of all animals in the phylum Mollusca?
A. they secrete shells
B. they contain open circulatory systems
C. they are soft-bodied
D. they live in marine habitats
Answer: C
Which is true of all animals in the phylum Mollusca?
A. they secrete shells
B. they contain open circulatory systems
C. they are soft-bodied
D. they live in marine habitats
Answer: C