Earthworm Lab Report

~General Information~ Worms atomic physical body 18 the to the highest degree complex animals that I meet studied. They argon classified into triple different phyla. at that place is a piffling calculate of species(20,000) of insects but there ar a large number of curves. All worms have three layers of cells. They also have align 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 star of the just about complex worms. Although segmented worms ar bilaterally symmetrical manage 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 subvert with a mouth and a small lip called the prostom ium, 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 get it on in the discolouration, and they beat it as they move through it. mend 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 allow in a nervous system, digestive system, circulat ory system, respiratory system, excretory sy! stem, and a fruitful system. The nervous system coordinates all political campaign and reactions that occur in the worm by carrying impulses over strikingness pathways. The digestive system is responsible for taking in all food and getting... If you exigency to get a full essay, collection it on our website: BestEssayCheap.com

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