What does the term segmentation mean? animal in which the mouth forms second in development

trait in which an animal has repeating body parts able to be specialized for different function

animal in which the mouth forms first in development

trait in which the nervous system is concentrated in one end, forming a head

trait in which an animal has repeating body parts able to be specialized for different function

Explanation:

Segmentation is a characteristics of many living organisms. Segmentation is referred to as the division of certain body part of an organism into sections. This section is repeated as many times as possible on the animal/plant.

The segment divides the part into specialized units that performs differing functions. The different functions define the organism, hence, segmentation is very important in development.