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Briefly describe how epigenetics explains why identical twins, who are genetic copies of each other, nonetheless different in subtle ways?
Homo Habilis
An extinct species of early human that lived approximately 2.1 to 1.5 million years ago, recognized for its use of stone tools.
Stone Tools
Prehistoric tools made from stone by early humans for cutting, scraping, and other activities.
Bipedal
The ability to walk on two legs, a key characteristic that differentiates humans and some other species from most animals.
Homo Erectus
An extinct species of early human that lived throughout much of the Pleistocene geological epoch, known for its upright walking ability.
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