Which among the following is incorrect about Mollusca?
A. This is the second largest phylum of Animal Kingdom
B. They have organ system level of organization
C. They have a dorsal heart along with dorsal and ventral blood vessels
D. Their body is covered with calcareous shell
Answer:C
Which among the following is incorrect about Mollusca?
A. This is the second largest phylum of Animal Kingdom B. They have organ system level of organization C. They have a dorsal heart along with dorsal and ventral blood vessels D. Their body is covered with calcareous shell