Difference between monozygotic and dizygotic twins

Identical twins are also known as monozygotic twins. They result from the fertilization of a single egg that splits in two. ... In contrast, fraternal, or dizygotic, twins result from the fertilization of two separate eggs during the same pregnancy. They share half of their genes, just like any other siblings.

Explanation:

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cognitive activities are mental processes through which we make sense of the world around us or get to know or experience our environment (internal and external). examples of cognitive activities are reasoning, thinking, perceiving, decision-making, listening, observing,etc.