In caregiving research, the primary caregiver is usually defined by the __________

It is characteristic of robins to build nests. This provides an example of:

a. intrinsic motivation. b. homeostasis. c. a drive. d. a need. e. an instinct.

Which of the following U.S. children is most likely to get his or her permanent teeth first?

A) Brooke, an obese girl B) Malik, an undernourished boy C) Jack, a well-nourished boy of average weight D) Sasha, an undernourished girl