After fertilization occurs, cell division takes place according to the process of

Hoffman (2000) found that toddlers responded to a researcher's feigned distress by offering a hug, a comforting remark, or a favorite stuffed animal or blanket. What concept describes this behavior?

a. socio-emotive balance b. conscience c. empathy d. emotional intelligence

Taylor's twenty-third pair of chromosomes is XX. Taylor is

A) male. B) a fraternal twin. C) female. D) an identical twin.