Question

In Ascaris, the coelom is :

• A. schizocoelom
• B. pseudocoelom
• C. true coelom
• D. haemocoelom

Answer 1

The Correct Option is B

Pseudocoelom: Body cavity is false coelom, derived from embryonic blastocoel. e.g.; Aschelminthes (Ascaris). In pseudocoelomates, there is a liquid filled space in which body organs float. Eucoelom or true coelom is lined with two layers of mesodenn e.g., earthworms. It nu) be schizocoelom or emerocoelom. Schizocoelom is the true coelom, originate by splitting of mesoderm and its enlargement to form the cavity e.g; Annelida. Arthropoda, Mollusca). Haemocoelom is the true coelom, filled with blood. It is found in arthropods, some annelids and molluscs, where the circulatory system open type (with blood sinuses and lacunae).