Earthworms - 1 Earthworms Earthworms are called segmented...

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Earthworms Earthworms are called segmented worms. The body is divided into about 100 segments. Each segment has four bristles called setae. The 2 purposes of the bristles are: - anchor itself in its underground home - helps the earthworm move Digestive System The earthworm’s digestive system is very specialized. It begins in the mouth and ends in the anus. The earthworm’s digestive system is divided into parts: the throat bring in soil containing food the stomach holds the food the gizzard grinds the food the intestines where the food is digested the intestines is about as long as the worm the anus passes the waste out of the worm called castings. The earthworm can regenerate if they are cut near the head or the tail. Earthworms will die if they are cut between segments 11 and 36. Circulatory System The blood system carries food to all parts of the earthworm’s body. The blood is carried through two long tubes. The tubes meet in the front part of the earthworm.
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This note was uploaded on 12/15/2011 for the course BIO BSC1010 taught by Professor Gwenhauner during the Fall '10 term at Broward College.

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Earthworms - 1 Earthworms Earthworms are called segmented...

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