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Approximately what percentage of teens who are online use social media?
Monozygotic Twins
Identical twins that develop from one zygote, which splits and forms two embryos, sharing exactly the same genetic material.
Dizygotic Twins
Also known as fraternal twins, these are siblings that are born at the same time but have developed from two different eggs fertilized by two different sperm.
Environmental Shared
The portion of the environment that is experienced identically by individuals, often used in contrast to "non-shared environment" in studies of heritability.
Monozygotic Twins
Identical twins originating from the division of a single fertilized egg, sharing all of their genetic material.
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