Darwin proposed that individuals with hear ty traits are to a greater extent likely to survive and reproduce. Darwin called this impact natural selection. Darwin did not understand how or why athletics existed. nowadays scientists realize that variation arises through random changes (called mutations) to animate genes. Genes are the chemicals that determine the traits and characteristics of animals and plants. Every trait has one or more g...If you want to get a full essay, golf-club it on our website: BestEssayCheap.com
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