Question

Identify the animals from the given figures and mark the phylum to which they belong.

• A. P: Mollusca, Q: Echinodermata, R: Nematoda, S: Arthropoda
• B. P: Echinodermata, Q: Coelenterata, R: Annelida, S: Mollusca
• C. P: Nematoda, Q: Annelida, R: Coelenterata, S: Platyhelminthes
  
• D. P: Amphibia, Q: Reptilia, R: Protochordata, S: Nematoda

Answer 1

The correct option is C P: Nematoda, Q: Annelida, R: Coelenterata, S: Platyhelminthes

P is the roundworms which belong to phylum Nematoda. It is a parasite and has a bilateral symmetry.

Q is the segmented worm which belongs to phylum Annelida. It is bilaterally symmetrical and triploblastic.

R belongs to phylum Coelenterata. It has medusa shape of the body.

S is a flatworm which belongs to phylum Platyhelminthes.

So, the correct answer is option C.