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प्रश्न
What is nematocyst?
एक पंक्ति में उत्तर
उत्तर
The stinging cells present at tentacles of aquatic animals like jelly fish, hydra, etc in phylum coelenterata is called nematocyst (cnidoblast)
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संबंधित प्रश्न
Give scientific reason.
Our body irritates if it comes in contact with a jellyfish.
How do we destroy the harmful insects?
State whether true or false. If false, correct the statement.
Canal system is seen in coelenterates.
Define the terms and give one example
Coelom
Name the following:
A phylum with diploblastic animals.
What is polymorphism?
Alternation of generations in Coelenterata is known as
What is metagenesis? Mention an example which exhibits this phenomenon.
Match the following:
| Animals | Locomotory Organ |
| a. Octopus | i. Limbs |
| b. Crocodile | ii. Comb plates |
| c. Catla | iii. Tentacles |
| d. Ctenoplana | iv. Fins |
Differentiate between polyp and medusa
