Question

Read the following statements:
i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm
ii) Digestive cavity is found in acoelomates, pseudocoelmates as well as coelomates
iii) The body cavity of arthropods and non-cephaloped molluscs is called haemocoel
iv) Aschelminthes possess true body cavity
v) Echinoderms are bilaterally symmetrical
Which of the above statements are correct?

• A. i, iii
• B. i, ii, iii
• C. iv, v
• D. i, iv, v

Answer 1

The correct option is A i, iii

• True coelom arises from mesoderm
• Digestive cavity is found is pseudocoelomates and coelomates
• Haemocoel is seen in athropods and molluscs
• Aschelminthes have pseudocoelom
• Echinoderms are radially symmetrical
• Hence the correct option is A.