Question

48. Stinging capsules (nematocysts) are found in
(a) wasp and honeybee
(b) scorpion and cobra
(c) sea pen and sea fan
(d) cactus and Venus ft rap.
(AIMS)​

Answer 1

Answer:

The correct option is: (c) sea pen and sea fan।

Explanation:

The correct option is: (c) sea pen and sea fan Explanation: Stinging cells (cnidocytes or cnidoblasts or nematoblasts) are used for offence and defence. These have nematocysts (the stinging organs), composed of capsule, shaft and thread tube. The thread tube coils around the prey or attaches to it or injects a toxin, called hypnotoxin which paralyzes the victim. They are found in cnidarians- sea pen (Pennatula), sea fan (Gorgonia). etc.

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