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evolution (Natural Selection (In a family there are differences…
evolution
Natural Selection
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Natural selection, also known as survival of the fittest, causes evolution.
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Human Evolution
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Humans evolved to have larger brains, taller bodies, use tools, and form communities.
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Plant Adaptation
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Plants have various adaptations, such as roots underground.
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Charles Darwin
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While traveling, he studied many plants and animals.
He observed that the animals were different, based on their environment.
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Fossils
Oil, gas and coal comes from fossils (fossil fuels).
Over millions of years, dead plants were compressed into coal.
There are different types of fossils, such as body, trace, mold, and cast.
The fossil records are incomplete, because not everything becomes a fossil.
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Australopithecus group
Species in this group of early humans walked upright on a regular basis, but they still climbed trees, too.
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Homo Group
Like modern humans, other species in this group had large brains and used tools. Members of this group were the first to expand beyond Africa.
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Ardipithecus group
The earliest humans are our closest link to other primates. They evolved in Africa and took the first steps towards walking upright.
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