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Classification (Natural Selection (The Struggle for existence (the…
Classification
Natural Selection
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Adaption
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.
Variation
any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation).
Survival of the fittest
is a phrase that originated from Darwinian evolutionary theory as a way of describing the mechanism of natural selection. The biological concept of fitness is defined as reproductive success.
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Natural selection
is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, it is a change of heritable traits in a population over time.
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