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The Living World
Question
Stinging capsules (nematocysts) are found in
wasp and honeybee
scorpion and cobra
sea pen and sea fan
cactus and Venus flytrap
Solution
C.
sea pen and sea fan
Stinging cells are used for offence and defence. They have nematocysts, composed of capsule, shaft and thread tube. The thread tube coils around the prey or attaches to it and 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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