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NEET Practice Questions (MCQs) with Answers & Solutions

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All Physics Chemistry Botany Zoology

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Which of the following is true for Phylum Mollusca?

Largest Phylum

Radial Symmetry

Triploblastic animals

Segmentation present

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Explanation

Refer NCERT, Heading 4.2.8, page-53, para 1

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Which of the following is true for Shells of Mollusca?

Secreted by outer surface of the Mantle

Helps in protection

Pearl is formed in this layer

All of these

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Explanation

Pearl is formed between the outer and inner layer of the mantle

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Which of the following is true about Apple snail.

It belongs to class Gastropoda

Body is covered by Calcareous shell

Torsion present

All of these

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Explanation

Refer NCERT, Heading 4.2.8, page-53, para 1, All is correct It comes under the class Gastropoda, Torsion involves twisting of the body that’s why most adult gastropods are not bilaterally symmetrical.

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Which of the following is true about Radula?

Rasping organ

Tongue like structure

Used in feeding

All of these

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Explanation

Refer NCERT, Heading 4.2.8, page-53, para 1, All of these is true about Radula

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Echinoderms are

Triploblastic

Coelomate animals

all marine

All of the above

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Explanation

Refer NCERT, Heading 4.2.9, page-54, para 1

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Water Vascular system helps in

Locomotion

Food capture and transport

Respiration

All of these

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Explanation

Refer NCERT, Heading 4.2.9, page-54, para 1

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Which of the following is incorrect about Echinoderms?

Protostomous

Deuterostomous

Pentaradially symmetrical

Spiny skin

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Explanation

Refer NCERT, Heading 4.2.9, page-54, para 1, Echinoderms are not Protostomous

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How many of the following is the member of Echinodermata?

Sea hare, Sea cucumber, Sea lily, Sea urchin, Sea-pen, Sea fan, Sea anemone

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Explanation

Refer NCERT, Heading 4.2.9, page-54, para 1, Sea cucumber, Sea urchin and Sea lily

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Which of the following is not a member of Echinodermata?

Antedon

Asterias

Aplysia

Ophiura

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Explanation

Refer NCERT, Heading 4.2.9, page-54, para1, Aplysia is a Mollusk.

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Which of the following is true for Hemichordata?

Earlier placed under phylum of Chordata

Now placed under Non- Chordata

Notochord is absent

All of these

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Explanation

Refer NCERT, Heading 4.2.10, page-54, para 1

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