noun
A formal or scientific term for a living organism, including animals, plants, and microorganisms. In everyday speech, 生物 (せいぶつ) is more common.
生物体は環境に適応して進化する。
Organisms evolve by adapting to their environment.
この湖には多様
A variety of organisms inhabit this lake.
有機体 also means 'organism' but is less common and often used in philosophical or biological discussions about organized systems.
Compound of 生物 (せいぶつ, 'living thing') and 体 (たい, 'body'). The exact historical derivation is uncertain, but the word likely emerged in modern scientific contexts to refer to the physical entity of a living organism.