Earthworms during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton because
Options
(a) coelomic fluid
(b) blood
(c) gut peristalsis
(d) setae
Correct Answer:
coelomic fluid
Explanation:
Earthworms have no skeleton but during burrowing, anterior end becomes turgid and acts as a hydraulic skeleton. It is due to coelomic fluid. The coelom is filled with an alkaline milky coelomic fluid. This coelomic fliud contains water, salts, proteins and 4 types of cells namely amoebocytes, mucocytes, circular cells and chloragogen cells