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Phylum - Porifera MCQ Question with Answer

Phylum - Porifera MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 29
Difference between a sponge and a metazoan is that sponge do not contain

cells
cell organisation
cell division
division of labour

Question No : 30
Gemmules are helpful in

digestion
sexual reproduction
asexual reproduction
current circulation

Question No : 31
The most common composition of skeleton in sponges is :

Cartilage
Mesenchyma
Spicules and spongin fibres
Myonemes

Question No : 32
The larva of Sycoti is

parenchyma
alanula
redia
amphib las tula

Question No : 33
Animals of phylum porifera are characterised by

diploblastic organisation
coelenteron
canal system
coelom

Question No : 34
Lencosolenia is

free living, solitary, marine
free living, fresh water, solitary
free living, colonial, marine
Solitary, colonial, fresh water

Question No : 35
Cells that aid in locomotion of a sponge are

porocytes
myocytes
choanocytes
none of these

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