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प्रश्न
Give scientific reasons.
Our body irritates if it comes in contact with jelly fish.
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उत्तर
- Jellyfish are a coelenterate that has cnidoblasts bearing tentacles.
- These cnidoblasts inject toxins to paralyse the prey at the time of feeding.
- When jellyfish come in contact with our bodies, this toxin is released, causing a reaction to our skin.
Therefore, our body gets irritated when we come in contact with jellyfish.
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संबंधित प्रश्न
Sketch, label and classify a butterfly.
Label the following.
Porifera : Asymmetrical : : Cnidaria : __________
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 does it belong, if I have a sting to prick?
To which phylum we belong to, if we are marine/aquatic animals?
How do we destroy the harmful insects?
Draw a neat and labelled diagram.
Hydra
State whether true or false. If false, correct the statement.
Canal system is seen in coelenterates.
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?
What is polymorphism?
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
