Segmented body意思

"Segmented body" is a term used in biology to describe an organism's body that is divided into a series of repeating segments. This type of body plan is most commonly found in invertebrates, particularly those belonging to the phylum Arthropoda (such as insects, spiders, and crustaceans) and the phylum Annelida (earthworms and leeches).

Each segment of the body is a specialized unit that can perform specific functions, and the segments are typically connected by flexible joints or membranes, allowing the organism to move more efficiently and to adapt to different environments. The segmentation can vary in complexity and can be seen in the anatomy of the digestive system, the circulatory system, the nervous system, and the musculature.

Segmentation is an important evolutionary adaptation that has allowed for the diversification of invertebrate species, as it provides a modular design that can be modified and adapted over time to suit different lifestyles and ecological niches.