Question

Nematocysts of Hydra occur in maximum number over

• A. Gastrodermis
• B. Basal disc
• C. Gonads
• D. Tentacles

Answer 1

The correct option is D Tentacles

Hydra has a number of different types of stinging cells, called nematocysts, on their tentacles which will majorly interact with incoming danger and cause an ejection in response to the mechanical stimuli. The release of neurotoxin due to the stinging paralyses the prey. These nematocysts are mainly present all over the tentacles.

So, the correct answer is 'Tentacles'.