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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
Porifera : Asymmetrical : : Cnidaria : __________
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?
Give scientific reason.
Our body irritates if it comes in contact with a jellyfish.
How do we destroy the harmful insects?
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?
Real organs are absent in
Define the terms and give one example
Coelom
How is the body wall of coelenterates arranged?
Alternation of generations in Coelenterata is known as
Which of the following traits is not shared by both sea anemones and jelly fish?
What is metagenesis? Mention an example which exhibits this phenomenon.
Provide appropriate technical term in the space provided.
Stinging organ of jelly fishes ______.
