How does respiration occur in Porifera ?
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porifera has pores all over the body. with the help of these they respire. as they are mostly aquatic the use the dissolved oxygen.
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Answer:
Explanation:
(i) The process of release of energy by oxidation of
food is called as respiration.
(ii) In living organisms, respiration occurs at two
levels - body and cellular level.
(iii) In case of body level, oxygen and carbon
dioxide are exchanged between the body and
surrounding.
(iv) In case of cellular level, food is oxidized either with
or without the help of oxygen to release energy.
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