Question

Find out the correct option regarding following the phylum coelenterata, platyhelminthes, annelida and chordata ?

• A. Except phylum chordata, rest three phylum having mesodermally derived rod-like structure notochord.
• B. In platyhelminthes and annnelida, pseudocoelom cavity is found.
• C. Except coelenterata, they are triploblastic, bilaterally symmetrical with organ/organ system level of organization.
• D. Except three, the chrodates has a closed circulation and radial symmetry

Answer 1

Answer: (C)

Correct answer is (c) Except coelenterata, they are triploblastic, bilaterally symmetrical with organ/organ system level of organization.