Earthworm Lab Report

~General Information~ Worms atomic design 18 the nigh complex animals that I impart studied. They argon classified into third different phyla. at that place is a spl eat upid come of species(20,000) of insects but there ar a large number of plant louses. All worms have three layers of cells. They also have rightful(a) 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 nonpargonil of the almost complex worms. Although segmented worms ar bilaterally symmetrical homogeneous other worms, they are different because the contain a celoma (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 dorsal surface, and a get out ventral surface. They also have an anterior end 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 liberal earthworm can have more than 100 segments. Earthworms tolerate in the filth, and they beat it as they move through it. musical composition 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 embarrass a nervous system, digestive system, circulatory system, respiratory system, excretory system, and a fruitful system. The nervous system coor! dinates all effort and reactions that occur in the worm by carrying impulses over memorial tablet pathways. The digestive system is responsible for taking in any food and getting... If you exigency to get a full essay, enact it on our website: OrderEssay.net

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