Biology MCQs

Page No. 57

All of the following are true for Platyhelminthes except____________?


aFlatwarms

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bTriploblastic

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cCoelomate

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dBilateral symmetry

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View Answer Coelomate

Exoskeoeton of coelenterates terates is made up to__________?


aCalcium

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bSilica

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cChitin

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dBoth A & B

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View Answer Calcium

Pseudocoelem develops from____________?


aBlastopore

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bPlastoquinone

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cBlastocoel

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dSplitting of mesoderm

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View Answer Blastocoel

Excretory system of platyhlminthes consists of___________?


aNephridia

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bFlame cells

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cMalpighian tubules

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dNephrons

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View Answer Flame cells

All of the following coelenterates show alternation of generation except:


aHydra

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bObelia

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cAurelia

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dNone of these

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View Answer Hydra

Enteron in coelenterates acts as___________?


aDigestive cavity

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bBody cavity

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cTransporting cavity

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dall of these

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View Answer all of these

Porifera range in size from__________?


aFew millimeter wide to more than one meter tall

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bFew centimeter wide to more than one meter tall

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cFew decimeter wide to more than one meter tall

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dOne meter wide to more than millimeter tall.

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Coelom is lined by__________?


aParietal mesoderm

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bVisceral mesoderm

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cMesoderm

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dBoth A & B

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View Answer Both A & B

Of the following which one is not the characteristic of Kingdom Animalia.


aAll animals are ingestive heterotrophs

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bAll animals are eukaryotes

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cAll animals develop from the dissimilar gametes i.e. large sperm and small egg.

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dIt is largest kingdom.

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_______ are the first group of invertebrates which have developed a closed circulatory system.


aNematods

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bAnnelids

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cArthropods

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dMolluscs

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View Answer Annelids

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