When the structure of an animal's body shows repeating segments it is known as

When the structure of an animal's body shows repeating segments it is known as a metamere (metamerism).

Metamerism (also called segmentation) is a condition in which the structure of an animal's body shows linear series of repeating parts. Each of the body segments is known as a metamere or somites, and they are formed individually in sequence in the embryo. All organisms that belongs to the three large animal phyla which are; Chordata, Arthropoda, and Annelida are metameric.

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.