NEET 2008 Biology question
Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to
Answer: (2)
Solution
In earthworms the fluid-filled coelom acts as a hydraulic skeleton: contraction of circular muscles forces coelomic fluid forward and makes the anterior end turgid and elongated, enabling it to push into the soil.
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account