In earthworm,the humic acid present in humus part of soil is neutralised in stomach by secretion of (1)Prostate glands (2)Blood glands (3)Calciferous glands (4)Gizzard
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Answer:
option 3 is correct.
Explanation:
CaCO3 secreted from calciferous glands in form of crystals which neutralize humic acid.
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