metamerejä
Metameres are a concept used in biology to describe repeating segments or units along the body of an animal. This type of segmentation is known as metamerism or segmentation. Metamerism can be external, visible as distinct divisions in the body, or internal, referring to the repetition of organs and tissues within those divisions.
The most classic example of metamerism is found in annelid worms, such as earthworms and leeches. Their
Other animal groups also exhibit forms of metamerism, although it may be less obvious than in annelids.