Why earth worms doesn't have a digestive tract

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Solution

Dear student,

Earthworms do have digestive tract where digestive enzymes breakdown complex food into smaller absorbable units. The digestive system of earthworm comprise of :-

Food Decaying leaves, organic matter mixed with soil

Mouth Terminal

1st - 3rd segments Muscular Pharynx and Buccal cavity

5th - 7th segments Oesophagus

8th - 9th segments Muscular gizzard grinds the food

9th - 14th segments Stomach (calciferous glands in the stomach neutralise humic acid of humus)

15th segment to the last segment Intestine

26th segment A pair of short conical intestinal caecae

26th - 35th segments Typhlosole (median fold of the dorsal wall); increase the surface area for effective absorption

Last segment Anus

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Food	Decaying leaves, organic matter mixed with soil
Mouth	Terminal
1st - 3rd segments	Muscular Pharynx and Buccal cavity
5th - 7th segments	Oesophagus
8th - 9th segments	Muscular gizzard grinds the food
9th - 14th segments	Stomach (calciferous glands in the stomach neutralise humic acid of humus)
15th segment to the last segment	Intestine
26th segment	A pair of short conical intestinal caecae
26th - 35th segments	Typhlosole (median fold of the dorsal wall); increase the surface area for effective absorption
Last segment	Anus