2007-04-22 17:59:19 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Biology
The digestive tract is divided into several well developed organs: pharynx, esophagus, crop, gizzard, and intestine.
The pharynx sucks in dirt which contains microorganisms and other possible materials to be used as food. This material is passed on through the esophagus and into a slightly muscular organ called the crop. Here the food is stored for a short while. The gizzard contains small grains of rock and sand that will mash the food into smaller pieces. Then this mash is sent into the intestine where it its chemically digested and the materials absorbed into the blood. The unused food is passed on out through the earthworm's anus. This material is called castings and is a good fertilizer.
2007-04-23 13:42:26 · answer #1 · answered by ATP-Man 7 · 1⤊ 0⤋
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how does an annelids digestive system work?
2015-08-18 20:27:48 · answer #2 · answered by Katti 1 · 0⤊ 0⤋
Annelids have a complete digestive system with mouth and anus. The food travels one way through this system, which is more efficient than the incomplete digestive system with one body opening.
The main parts of the annelid digestive system (like the earthworm) is the mouth, pharynx, esophagus, crop, gizzard, intestine, anus.
2007-04-22 19:00:10 · answer #3 · answered by ecolink 7 · 1⤊ 0⤋
Annelida Digestive System
2016-12-11 19:04:43 · answer #4 · answered by Anonymous · 0⤊ 0⤋
the secretions that are produced in the stomach are Hydrochloric acid is secreted from parietal cells, Proteases, mucus that coats and lubricates the gastric surface, and gastrin. the secretions that are produced in the liver are bile, proteins that are secreted into the blood, including major plasma proteins, factors in hemostasis and fibrinolysis, carrier proteins, hormones, prohormones and apolipoprotein
2016-03-14 14:16:05 · answer #5 · answered by Anonymous · 0⤊ 0⤋