18. Variation and Selection

18.2) Adaptive features

18.2) Adaptive features   Adaptive feature: is an inherited feature that helps an organism to survive and reproduce in it environment. Adaptive features: is the inherited functional features of an organism that increase its fitness. Fitness: is the probability of...

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18.1) Variation

18.1) Variation   Variation: is the differences between individuals of the same species.   Genetic variation are variations that are determined by genes. Phenotypic variations may be brought about by genes, but can also be caused by the environment, or a...

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18.3) Selection

18.3) Selection   Natural selection: Variation within populations. Production of many offspring. Competition for resources. Struggle for survival. Reproduction by individuals that are better adapted to the environment than others. Passing on their alleles to the...

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