Question

describe one measure of evolutionary fitness

Answer 1

The central concept of natural selection is the evolutionary fitness of an organism.Fitness is measured by an organism's ability to survive and reproduce, which determines the size of its genetic contribution to the next generation.However, fitness is not the same as the total number of offspring: instead fitness is indicated by the proportion of subsequent generations that carry an organism's genes.For example, if an organism could survive well and reproduce rapidly, but its offspring were all too small and weak to survive, this organism would make little genetic contribution to future generations and would thus have low fitness.

Answer 2

Reproductive success is someone's production of offspring per breeding event or lifetime. This is not limited by the number of offspring made by one individual, but also the reproductive success of these offspring themselves.

Reproductive success leads to natural selection which can cause microevolution (change in allele frequencies), with fitness-increasing alleles becoming more common in the population.

Fitness is a measure of reproductive success.

What are examples of reproductive success?

Example, the offspring produced as a result of normal mating are an example of reproductive success because they too can pass their genetic material on to the next generation.

So, Reproductive success is one measure of evolutionary fitness.

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