If an organism has high biological fitness in one environment, does that mean that it would also have high biological fitness in another environment? Why or why not?

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Biology

Taz

6 February, 11:46

If an organism has high biological fitness in one environment, does that mean that it would also have high biological fitness in another environment? Why or why not?

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Giovanni Blanchard · Answer 1

The answer is no, high biological fitness in one environment doesn't have to be high in another environment.

Biological fitness is a term used in evolutionary biology and it is the quantitative representation of how a genotype (or phenotype) is successful (reproductively) in a certain environment. Fitness depends on environment so it changes if the environment changes. The fitness of a genotype is manifested through its phenotype, which is affected by the environment.