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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
Sketch, labell and classify Hydra .
Porifera : Asymmetrical : : Cnidaria : __________
How does the animal in the figure protect itself?
Give scientific reason.
Our body irritates if it comes in contact with a jellyfish.
To which phylum we belong to, if we are marine/aquatic animals?
Why coelenterates are called diploblastic animals?
Real organs are absent in
______ are diploblastic.
Name the following:
A phylum with diploblastic animals.
How is the body wall of coelenterates arranged?
What is polymorphism?
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 |
Name
An animal with cnidoblasts
Give an example for the following:
Animal, which exhibits alternation of generation
