What family do worms belong to? Detailed answer

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What family do worms belong to? Detailed answer

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What family do worms belong to?

Scientists find it difficult to determine exactly what worms are. Rather, they can be described as elongated, invertebrate animals, capable of crawling and having a more or less distinct head ending. An important feature of worms is that they can be divided into two identical parts - left and right. So when you come across an animal that fits that description, it's a worm.

The sizes of worms range from microscopic to huge (about 12 meters in length). Worms can be both transparent and dark brown, green and red. Worms are divided into several main groups. The most important are flatworms: a group including pinworms, roundworms and nematodes (as well as a group of lamellar worms).

Flatworms get their name from their flat body shape. These worms are hermaphrodites, that is, they contain both sexes. Some of them are free-living, some are parasitic. Parasitic flatworms include the tapeworm, which usually lives in the intestines of vertebrate mammals such as dogs and humans. Pinworms form a large group of thread-like worms, varying in size from barely visible to the naked eye to varieties reaching several meters in length.

Trichinella pinworms, guinea worms and common roundworms are the most dangerous worms. They are the cause of serious diseases of some animals and humans. But the earthworms most familiar to us are very useful, because, by drilling the soil, they loosen it, which contributes to the growth of plants.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

How could so many samurai be forced to kill themselves at the same time?

According to bushido - the code of honor of the samurai - his life belonged entirely to the owner. In medieval wars, it was enough to kill the owner for all his samurai to commit "suicide after" ("junshi").

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