Earthworms

God made them long and thin just like your mum's pen!$

No. As their name implies, they eat earth.

Earthworms tunnel through the ground by swallowing dirt and passing it through their bodies. In that dirt, the worm gets nutrients from decomposing vegetation, like rotting leaves and other organic material. The worms digestion of this material as it pases through him/her helps break down the leaves and organic material further, helping soil to become fertile, mixed and "nutritious" for plants to grow, the tunnels also irrigate the soil and allow air to be mixed in (oxygen also helps old leaves and dead plants to decompose). Because of worms, when rain falls, fresh water can sink into the earth more easily to reach plant roots and the water table more easily, instead of just rolling down hill and eroding (taking nutrients and soil away) the land. Worms are really cool. Then as the earthworm has digested the dirt and taken the nutrients out of the dirt it poops out the dirt making new dirt that is fertilized and is ready to be dirt.

using circular muscles or use longitudinal muscles to squeeze itself flat

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The earthworms belong to the phylum Annelida. Phylum Annelida's members are called Annelids.

Each segment has its own muscles that allow the lengthening or shortening of the body in order to move.

the mouth is used to chew soil and swallow dirt. it actually serves a mean of locomotion for the earthworm

What might happen to an earthworm if the conditions of its habitat changed would be depend on what the changes were. If things became very wet, the worm would crawl to the surface. If things became very dry, the worm would try to escape but might die first.

well, idk.

^You fack. Don't answer if you don't know!

Anyways, the answer is..

An earthworm absorbs oxygen by using a moist surface such as its skin which is protected by a thin cuticle and kept moist by a slimy mucus. It also allows the earthworm to expel carbon dioxide.

Being aware of its environment is not very important, because it does not need to search for food or be aware of potential predators. However, the brain and peripheral nerve network of free-living flatworms represent the most primitive nervous systems currently under investigation. It consists of a small but well-defined brain (right panel) and numerous peripheral motoneurones connected by longitudinal nerve cords and transverse commissures. So to answer your answer your question, this nervous system enables flatworms to perceive environmental changes and to respond to internal and external stimuli.

you can find the ganglia under the pharynx and another pair of ganglia above the pharynx

yes

Soft-bodied, segmented worms that belong to the Annelida phylum. Earthworms are also called night crawlers because they burrow down in the ground during the day and come above ground at night to feed. An earthworm has a small brain, a digestive system, a reproductive system and a circulatory system with five pairs of hearts. Earthworms breathe through their skin instead of with lungs.

Earthworms produce waste called "Castings". Castings are excellent fertilizer. These castings are also known as worm humus or worm manure or, more correctly, vermicast. They are particularly rich in nitrogen, phosphate, calcium, and magnesium.

No the worm its self is not a decomposer but it is useful to the decomposing process. For example in your compost you would want worms because they eat tunnels through your compost letting the air through it casing it to decompose faster. They are not decomposers but help things to decompose.

i don't know. go sniff an earthworm and find out yourself.

An earthworm is an omnivore (but more specifically a detritivore as they mainly eat decaying plant matter). It eats whatever material (plant or animal) that it ingests from the soil.

No, earthworms cannot hear, but the feel the vibrations through the ground. That is their form of sight and hearing.

Well, worms dont have lungs, so they wont drown if hit by a giant drop of water. They come out simply to mate. They lay side by side that is hard to do in a burrow.

decomposers

Earthworms have segmented bodies which allow them to move around in their environments. Another adaptation is that they can secrete a lubricant if the ground is too dry.

Describe the cut that is to be made to the worm, what instruments is to be used