Hydra receives impulses and stimuli through

Options

A. Nerve net
B. Sensory cells
C. Nematocytes
D. All of these

Answer

D

Explanation

Hydra receives impulse and stimuli through :
* Nerve net – All neurons or nerve cells aggregate in the form of nerve net.
* Sensory cell – Present in both epidermis and gastrodermis that receive stimuli.
* Nematocyst – Present only in epidermis also receive stimulus for offence and defence.