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“Natural selection is usually thought of as an agent of change in populations, but it can also act to maintain the status quo.” 

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“Natural selection is usually thought of as an agent of change in populations, but it can also act to maintain the status quo.” 

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Natural selection is the process of developing traits to better survive in an environment

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Why is Natural Selection necessary to an environment?

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Why is Natural Selection necessary to an environment?

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An environment can change without warning. Natural Selection allows for animals to adapt to said change

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The giraffes in the model below gradually had longer necks due to the trees in their environment getting higher and hard to reach.

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Why was the giraffe's adaptation important to the environment?

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Why was the giraffe's adaptation important to the environment?

# data[].attributes.body
Every part of an environment is needed to help support it. If the giraffes hadn't adapted to be able to eat the tree, then every other variable would have been negatively affected because of one species' facing a population threat.