Related to the digestive system of earthworm, how many statements are correct in the given statements?
A) The alimentary canal is a straight tube and runs between first to last segment of the body.
B) Gizzard helps in grinding the soil particles and decaying leaves, etc.
C) Calciferous glands, present in the intestine, neutralise the humic acid present in humus.
D) Intestine starts from the 15th segment onwards and continues till the last segment.
Options are-

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All except ’C’ statement

All except ‘B’ statement

All except ‘A’ statement

All given statements are correct

answer is D.

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Detailed Solution

A) The alimentary canal is a straight tube and runs between first to last segment of the body.
B) Gizzard helps in grinding the soil particles and decaying leaves, etc.
C) Calciferous glands, present in the stomach, neutralise the humic acid present in humus.
D) Intestine starts from the 15th segment onwards and continues till the last segment.

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