病，疾病有機體的某一部位、某一器官或系統處于病理狀態(tài)，由各種因素引起，如傳染、遺傳缺陷或環(huán)境緊張，而且以被視為相同的一組表象或癥狀為特征
A pathological condition of a part, an organ, or a system of an organism resulting from various causes, such as infection, genetic defect, or environmental stress, and characterized by an identifiable group of signs or symptoms.
池有機體體內一種貯存流體的液囊或穴
A fluid-containing sac or cavity in the body of an organism.
一元發(fā)生說(shuō)認為所有生物都是由一個(gè)單細胞或有機體發(fā)展而來(lái)的理論
The theory that all living organisms are descended from a single cell or organism.
