Adaptation

A and B show real wasps; the rest are mimics: three hoverflies and one beetle.

An Indian peacock's trainin full display

In biology, an adaptation, also called an adaptive trait, is a trait with a current functional role in the life of an organism that is maintained and evolved by means of natural selection. Adaptation refers to both the current state of being adapted and to the dynamic evolutionary process that leads to the adaptation. Adaptations enhance the fitness and survival of individuals. Organisms face a succession of environmental challenges as they grow and develop and are equipped with an adaptive plasticity as the phenotype of traits develop in response to the imposed conditions. The developmental norm of reaction for any given trait is essential to the correction of adaptation as it affords a kind of biological insurance or resilience to varying environments.

单词	Structural adaptation
释义	Structural adaptation 原声例句 Osmosis-消化 Unlike the jejunum, the ileum is also capable of undergoing structural and functional adaptations to compensate for the jejunum if needed. 与空肠不同，回肠可进行结构和功能上的适应性改变，在必要时代偿空肠功能。英语百科 Adaptation In biology, an adaptation, also called an adaptive trait, is a trait with a current functional role in the life of an organism that is maintained and evolved by means of natural selection. Adaptation refers to both the current state of being adapted and to the dynamic evolutionary process that leads to the adaptation. Adaptations enhance the fitness and survival of individuals. Organisms face a succession of environmental challenges as they grow and develop and are equipped with an adaptive plasticity as the phenotype of traits develop in response to the imposed conditions. The developmental norm of reaction for any given trait is essential to the correction of adaptation as it affords a kind of biological insurance or resilience to varying environments.
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Structural adaptation

Adaptation