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प्रश्न
How do we destroy the harmful insects?
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उत्तर
Tentacles are useful for capturing the prey, whereas cnidoblasts penetrate the skin as a defensive action and inject toxins into the body of the harmful insects thus destroying them.
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संबंधित प्रश्न
Give scientific reasons.
Our body irritates if it comes in contact with jelly fish.
Label the following.
Tentacles are used for capturing the prey.
To which phylum does it belong, if I have a sting to prick?
To which phylum we belong to, if we are marine/aquatic animals?
Draw a neat and labelled diagram.
Hydra
Why coelenterates are called diploblastic animals?
Define the terms and give one example
Coelom
______ are diploblastic.
Name the following:
A phylum with diploblastic animals.
How is the body wall of coelenterates arranged?
Alternation of generations in Coelenterata is known as
Provide appropriate technical term in the space provided.
Free-floating form of cnidaria ______.
Provide appropriate technical term in the space provided.
Stinging organ of jelly fishes ______.
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
