Living Things in Ecosystems

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Natural selection describes the unequal survival and reproduction that results from the presence or absence of a particular trait.

Mutualism is a relationship in which one species benefits and the other is neither harmed nor helped.

A howler monkey's niche is a rain forest.

Charles Darwin proposed that organisms become well suited to their environment through evolution by natural selection.

Examples of biotic facotrs are sunlight , temperture, and water.

One major point of Darwin's theory is that all organisms have the ability to produce more offspring that can possibly survive,

An ecosystem includes all the different organisms living in a certain area, without their physical environment.

Evolution is a type of evolution by natural selection in which 2 or more species evolve in response to each other.