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Zoology MCQs for NEET — Practice Questions with Answers

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Canal system in sponges helps in

Food gathering

Respiratory exchange

Removal of waste

All of the above

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Explanation

Refer NCERT, Heading 4.2.1, page-49, para1.

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In sponges, digestion is

Intercellular

Intracellular

Both inter and inter cellular

Gastric cavity

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Explanation

Refer NCERT, Heading 4.2.1, page-49, para1.

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The mode of reproduction in sponges is

Sexual

Asexual

Both 1 and 2

None of these

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Explanation

Refer NCERT, Heading 4.2.1, page-49, para1.

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Find the incorrect match

Sycon-Scypha

Spongilla-Fresh water sponge

Euspongia- Bath sponge

Sycon- Bath sponge

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Explanation

Refer NCERT, Heading 4.2.1, page-49, para1

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Which one of the following is incorrect about Porifera?

Presence of spongin fibres

Cellular level of organisation

Presence of mouth and digestive cavity

Pores all over the body

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Explanation

Refer NCERT, Heading 4.2.1, page-49, para1, Presence of mouth and digestive cavity as these are absent in sponges.

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Which of the following cell of sponges contains flagella

Nematocyst

Spongioblast

Amoebocyte

Choanocytes

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Explanation

Refer NCERT, Heading 4.2.1, page-49, para1, Choanocytes

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The name of the phylum Cnidaria is derived from the

Nematocysts

Cnidoblasts

Cnidocytes

Both 2 and 3

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Explanation

Refer NCERT, Heading 4.2.2, page-50, para1

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Stinging capsule present in Cnidarians is called

Nematocysts

Choanocytes

Cnidocytes

Both 2 and 3

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Explanation

Refer NCERT, Heading 4.2.2, page-50, para1

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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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