Theory of evolution

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an info sheet with information about natural selection

Charles Darwin and Alfred Russel Wallace's theory explains how evolution occurs. Individuals naturally vary in traits in a population. With limited resources, competition exists in which those better adapted - with beneficial traits suited to the environment - are more likely to obtain resources, survive, reproduce, and pass traits to offspring over successive generations. This natural selection of advantageous traits leads species to evolve over time.

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the theory of evolution by natural selection is shown in this graphic above it's description

The Theory of Evolution by Natural Selection. Theory of Natural Selection. 5 Key Observations. Inferences. In each generation, populations produce more offspring than there are adults. Populations do not continue to grow in size. Individuals within a population compete for resources. Slideshow...

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a tree with different types of plants and animals on it, labeled in the diagram below

A phylogenetic tree is a graphic that shows how creatures have evolved over time. Phylogenetic trees are only that: theories, not facts. A phylogenetic tree's branching pattern indicates how species or other groupings emerged from a common ancestor. Two species are more linked in trees if they have a recent common ancestor, and less related if they share a distant common ancestor. Phylogenetic trees can be drawn in a variety of ways. The information carried by a tree does not change as it is…

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