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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
Identify me.
I am diploblastic & acoelomate. Which phylum do I belong to?
Tentacles are used for capturing the prey.
The body of the animal in which phylum is radially symmetrical and diploblastic?
How does the animal in the figure protect itself?
To which phylum we belong to, if we are marine/aquatic animals?
Draw a neat and labelled diagram.
Hydra
Mesoglea is present in ______.
State whether true or false. If false, correct the statement.
Canal system is seen in coelenterates.
Match the following.
| PHYLUM | EXAMPLES | ||
| (A) | Coelenterata | (i) | Snail |
| (B) | Platyhelminthes | (ii) | Starfish |
| (C) | Echinodermata | (iii) | Tapeworm |
| (D) | Mollusca | (iv) | Hydra |
Why coelenterates are called diploblastic animals?
Define the terms and give one example
Coelom
How is the body wall of coelenterates arranged?
What is polymorphism?
Which of the following traits is not shared by both sea anemones and jelly fish?
Provide appropriate technical term in the space provided.
Free-floating form of cnidaria ______.
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
