Question

explain with an example showing the variation in internal tendency of organism​

Answer 1

Explanation:

• [1]Evolution is change in the heritable characteristics of biological populations over successive generations.
• [2] These characteristics are the expressions of genes that are passed on from parent to offspring during reproduction. Different characteristics tend to exist within any given population as a result of mutation, genetic recombination and other sources of genetic variation.
• [3] Evolution occurs when evolutionary processes such as natural selection (including sexual selection) and genetic drift act on this variation, resulting in certain characteristics becoming more common or rare within a population.
• [4] It is this process of evolution that has given rise to biodiversity at every level of biological organisation, including the levels of species, individual organisms and molecules.
• [5] The scientific theory of evolution by natural selection was conceived independently by Charles Darwin and Alfred Russel Wallace in the mid-19th century and was set out in detail in Darwin's book On the Origin of Species.
• [6] Evolution by natural selection was first demonstrated by the observation that more offspring are often produced than can possibly survive.

Answer 2

Explanation:

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