Phylum - Coelentrata MCQ Question with Answer

Phylum - Coelentrata MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 29
The poisonous fluid present in the nematocysts of Hydra is

toxin

venom

hypnotoxin

haematin

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Question No : 30
The testes of hydra are located

below the ovaries

below the tentacles

further down the tentacles to occupy central position of the body

anywhere on the body between tentacles and adhesive disc

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Question No : 31
Enteron is divided by mesentries in

Aurelia

Sea anemone

Obelia

Hydra

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Question No : 32
A chitinous material is present in the

coenosarc of Obelia

perisarc of Obelia

body wall of Sea anemone

umbrella of Aurelia

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Question No : 33
Hydra is

marine, radial, symmetrical and diploblastic

fresh water, biradial, symmetrical and triploblastic

fresh water, radial, symmetrical and diploblastic

marine, radial, symmetrical and triploblastic

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Question No : 34
Nematocysts of Hydra are important for

cataching prey

paralysing prey

testing the food

testing the water

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Question No : 35
The nematocysts develop from

musculo-epithelial cells

interstitial cells

digestive cells

nerve cell

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