Among animals, many which, settling in the internal organs of the body or to other animals or humans, fed by others juices and tissues it. This is called a parasite attacking the body and the animal, the expense-cerned which he lives and eats - the host. Parasitism is widespread in nature and is very diverse. Parasitic lifestyle are many types of insects, a variety of ticks, worms, and some representatives of most of the lower animals - the simplest, the body which consists of just pouring out of a single cell. ... If you get more information, visit our site: BEST ESSAY CHEAP
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