Biology MCQs

Page No. 57

All of the following are true for Platyhelminthes except____________?


aFlatwarms


bTriploblastic


cCoelomate


dBilateral symmetry


View Answer Coelomate

Exoskeoeton of coelenterates terates is made up to__________?


aCalcium


bSilica


cChitin


dBoth A & B


View Answer Calcium

Pseudocoelem develops from____________?


aBlastopore


bPlastoquinone


cBlastocoel


dSplitting of mesoderm


View Answer Blastocoel

Excretory system of platyhlminthes consists of___________?


aNephridia


bFlame cells


cMalpighian tubules


dNephrons


View Answer Flame cells

All of the following coelenterates show alternation of generation except:


aHydra


bObelia


cAurelia


dNone of these


View Answer Hydra

Enteron in coelenterates acts as___________?


aDigestive cavity


bBody cavity


cTransporting cavity


dall of these


View Answer all of these

Porifera range in size from__________?


aFew millimeter wide to more than one meter tall


bFew centimeter wide to more than one meter tall


cFew decimeter wide to more than one meter tall


dOne meter wide to more than millimeter tall.



Coelom is lined by__________?


aParietal mesoderm


bVisceral mesoderm


cMesoderm


dBoth A & B


View Answer Both A & B

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


aAll animals are ingestive heterotrophs


bAll animals are eukaryotes


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


dIt is largest kingdom.



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


aNematods


bAnnelids


cArthropods


dMolluscs


View Answer Annelids

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