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प्रश्न
Give scientific reason .
Our body irritates if it comes in contact with jelly fish.
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उत्तर
Jelly fish has special cells on its tentacles called cnidoblasts. These cnidoblasts contain toxins which is a protective mechanism shown by organisms belonging to the phylum Cnidaria. On touching the jelly fish, this toxin is released which results in irritating of the body.
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संबंधित प्रश्न
Sketch, labell and classify Hydra .
Porifera : Asymmetrical : : Cnidaria : __________
Give scientific reason.
Our body irritates if it comes in contact with a jellyfish.
To which phylum I belong to, if I have cnidoblast-bearing tentacles?
Draw a neat and labelled diagram.
Hydra
Match the following.
| PHYLUM | EXAMPLES | ||
| (A) | Coelenterata | (i) | Snail |
| (B) | Platyhelminthes | (ii) | Starfish |
| (C) | Echinodermata | (iii) | Tapeworm |
| (D) | Mollusca | (iv) | Hydra |
What is nematocyst?
______ 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
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 ______.
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
