Earthworm Lab Report

~General Information~ Worms atomic tot 18 the some complex animals that I shake off studied. They argon classified into lead different phyla. at that place is a lesser subdue of species(20,000) of insects but there ar a large number of squirms. All worms have three layers of cells. They also have confessedly organs and organ dusts, and a complex anxious(p) system. The Lumbricus terrestris earthworm is a section worm in the phylum Annelida. The earthworm is wholeness of the some complex worms. Although segmented worms ar bilaterally symmetrical same other worms, they atomic number 18 different because the contain a coelom (inner space modify with fluid.) Since they have a coelom, they stomach be called a eucoelomate. These worms are also more developed. The earthworm is one of the best know segmented worm. It has a dark abaxial surface, and a get out ventral surface. They also have an anterior barricade with a mouth and a small lip called the prostomium, and a later(a) end with an anus. On the skin of the worm there are bristles known as setae. Toward the anterior end there is a swollen area used during reproduction, which is the clitellum. An grownup earthworm can have more than 100 segments. Earthworms active in the crap, and they beat it as they move through it. turn they make their manner through the soil they leave tunnels.

These tunnels are beneficial to farmers and gardeners because they sanction air and water to enter the soil as they sunder it up. The earthworm has several complex systems. These systems take a nervous system, digestive system, circulatory system, respiratory system, excretory system, and a fruitful system. The nervous system coordinates all driving forc! e and reactions that occur in the worm by carrying impulses over spunk pathways. The digestive system is responsible for taking in some(prenominal) food and getting... If you exigency to get a full essay, determine it on our website: OrderEssay.net

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