1. (noun) (biology) a natural phenomenon involving living plants and animals

• abiogenesis
• autogenesis
• autogeny
• spontaneous generation
• alternation of generations
• heterogenesis
• xenogenesis
• annual ring
• growth ring
• bioelectricity
• circulation
• cyclosis
• streaming
• death
• decay
• decomposition
• dehiscence
• desquamation
• peeling
• shedding
• diapedesis
• dominance
• exfoliation
• facilitation
• food chain
• food cycle
• food web
• food pyramid
• gene expression
• greening
• rejuvenation
• histocompatibility
• life
• life cycle
• pleomorphism
• polymorphism
• polymorphism
• recognition
• rejection
• sex linkage

1. (noun) (biology) a natural phenomenon involving living plants and animals

• biological science
• biology

1. (noun) (biology) a natural phenomenon involving living plants and animals

• natural phenomenon