Excretion in Animals
Excretion in Animals
Excretion in animals: Many unicellular organisms like Amoeba throw out their wastes by diffusion from their body surface. Protozoans have no organs for excretion. As they live in an aquatic habitat, their wastes are eliminated by diffusion through the plasma membrane.
In vertebrates the main organs of excretion and maintenance of water balance are the ___________________ . | |||
| Right Option : A | |||
| View Explanation | |||
Unicellular organisms remove the waste material from their body by __________________ | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct ? (a) Simple multicellular organisms like Hydra throw out solid waste matter through their mouth. . (b) The excretory organs of insects (e.g., grasshopper, cockroach and housefly) are tubular and are known as Malpighian tubules.
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| Right Option : C | |||
| View Explanation | |||
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