In sponges, nutrition, respiration and excretion depends upon

Circulatory system

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Ambulacral system

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Haemocoelomic system

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Canal system

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Solution

The correct option is B Canal system
Sponge belongs to phylum Porifera. It has a cellular level of organisation and thus, there are no definite organs or organ systems. It has a special system, called as canal system that allows water current to pass through this system. The animals have to depend on this canal system for nutrition, respiration, excretion, reproduction etc. Thus, the correct answer is option D.

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Similar questions

The kidneys in human beings are a part of the system for

(a) nutrition.

(b) respiration.

(d) transportation.

Question 1
The kidneys in human beings are a part of the system for

(a) Nutrition
(b) Respiration
(c) Excretion
(d) Transportation

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