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An Earthworm’s digestive system is one of the most important features of the worm. It consists of mouth, pharynx, esophagus, crop, gizzard and intestine. The mouth is surrounded by strong lips that act like a hand would. ... The body of an earthworm seems simple; upon further investigation it’s ugly too.
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hubpages.com/hub/Earthworms-and-digestion
hubpages.com/hub/Earthworms-and-digestion
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The digestive/excretory system of an earthworm is very simple. In short, food goes in one end and comes out the other. Niphridia, which are analogous with human kidneys, are found in pairs in every segment except for the first three and the last one (Musurca).
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www.angelfire.com/de2/atoy/dex.htm
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The earthworm has a simple yet sensitive nervous system. Its cerebral ganglion, or brain, is connected to the ventral nerve cord, which runs the length ... Thanks to this responsive nervous system, an earthworm is sensitive to touch, light from in front or in back, moisture, chemicals, temperature, and vibrations (Loretto).
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www.angelfire.com/de2/atoy/ner.htm
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System Type ... A earthworm has a digestive system. It eats dirt, digesting the plant and animal matter in the dirt and then eliminates the rest. ... A earthworm has a nervous system with a simple brain and nerve cord.
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www.mcwdn.org/Animals/Earthworms.html
www.mcwdn.org/Animals/Earthworms.html
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The earthworm's digestive system can be thought of as a tube within a tube. ... The complicated organs of the digestive system take up most of the anterior half of the earthworm's body. The earthworm ingests large amounts of soil, which has organic matter in it. The useless inorganic matter goes through the worm with no change.
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powerman486.tripod.com/info2.html
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Digestive system:; Observe the digestive tract running from mouth to anus. Anteriorly there are a number of modifications of the tract. Just posterior to the mouth opening is the muscular pharynx. The torn muscles associated with ... Circulatory system:; Circulation in the earthworm is through a series of closed vessels.
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www.esu.edu/~milewski/intro_biol_two/lab__12_annel_arth...
www.esu.edu/~milewski/intro_biol_two/lab__12_annel_arthro/Annelida.html
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The first structures you probably see are the seminal vesicles. They are cream colored and located toward the anterior of the worm. These are used for producing sperm. Use tweezers to remove these white structures from over the top of the digestive system that lies underneath it.
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www.biologycorner.com/worksheets/earthwormdissection.ht...
www.biologycorner.com/worksheets/earthwormdissection.htm
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What Is the Digestive System and What Does It Do? ... Things That Can Go Wrong With the Digestive System ... Almost all animals have a tube-type digestive system in which food enters the mouth, passes through a long tube, and exits as feces (poop) through the anus.
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kidshealth.org/teen/your_body/body_basics/digestive_sys...
kidshealth.org/teen/your_body/body_basics/digestive_system.html
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Click on a circled number to identify the structure indicated. Note: segment numbers are in black. Click on the blue box for a detailed view of that region. ... Identification information will appear here.
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biog-101-104.bio.cornell.edu/BioG101_104/tutorials/anim...
biog-101-104.bio.cornell.edu/BioG101_104/tutorials/animals/worm_stuff/worm_evis.html
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