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NEET Practice Questions (MCQs) with Answers & Solutions

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All Physics Chemistry Botany Zoology

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Cnidocytes are used for

Anchorage

Defence

Capturing of prey

All of these

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Explanation

Refer NCERT, Heading 4.2.2, page-50, para1

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Which of the following is not true about Cnidarians

Radial symmetry

Diploblastic

Tissue level of organisation

Deutrostomes

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Explanation

Refer NCERT, Heading 4.2.2, page-50, para1, Deutrostomes are the organism in which anus develops first. Protostomous are organism in which mouth develops first, they are neither Protostomous nor Deutrostomous.

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The distinctive feature of Cnidarians is

Cnidoblast

Polyp and Medusa form

Gastro-vascular cavity

Hypostome

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Explanation

Refer NCERT, Heading 4.2.2, page-50, para1 and page 60 table 4.2

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In Cnidarians the digestion is

Intracellular

Extracellular

Intercellular

Both 1 and 2

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Explanation

Refer NCERT, Heading 4.2.2, page-50, para1

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Which of the following is true about Gastro-vascular cavity of Cnidarians?

It contains single opening

Mouth on hypostome

Anus on hypostome

Both 1 and 2

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Explanation

Refer NCERT, Heading 4.2.2, page-50, para1

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Which of the following is incorrect statement

Polyp produce medusae asexually

Medusae produce polyp sexually

Polyp produce medusae sexually

Obelia shows metagenesis

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Explanation

Refer NCERT, Heading 4.2.2, page-50, para1

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Which of the following is known as Portugese man of war

Pennatula

Adamsia

Meandrina

Physalia

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Explanation

Refer NCERT, Heading 4.2.2, page-50, para1

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Which of the following not started from Cnidarians?

Tissue level of Organisation

Radial symmetry

Diploblastic body plan

Presence of mesoderm

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Explanation

Refer NCERT, Heading 4.2.2, page-50, para1

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Which of the following germinal layer is absent in Cnidarians

Ectoderm

Endoderm

Mesoderm

Both 2 and 3

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Explanation

Refer NCERT, Heading 4.2.2, page-50, para1, Mesoderm is absent in it.

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Ctenophores are commonly known as

Sea walnuts

Comb jellies

Cnidarians

Both 1 and 2

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Explanation

Refer NCERT, Heading 4.2.3, page-51, para1

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