Cannabinoid receptors are pretty evenly spread throughout the human brain.

By the old-old years, what is a person's chance of having NO chronic diseases?

A) low B) fifty-fifty C) high D) excellent for someone who is upper-middle class

The field of child development

A) is devoted to understanding human constancy and change throughout the lifespan. B) is part of a larger, interdisciplinary field known as developmental science. C) focuses primarily on children's physical and emotional development. D) focuses primarily on infants' and children's social and cognitive development.