Chimerism is what happens when cells from one twin are present in the other. For example, white blood cells with Y chromosomes would be found in the female twin.
: of, relating to, or involving conscious mental activities (such as thinking, understanding, learning, and remembering). cognitive development/psychology/impairment. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples.
exists and is an alternate of . Cognitive behavior refers to things one does to achieve tasks--remember, respond, sequence (do things in order) and so on. Usually, they are logical, learned things. Abstract thinking comes into it.