Jill’s mother was an All-American in the 1500m and qualified for the Olympic team in the marathon. Jill is a freshman in high school and does not think that she will need to train to become a member of the school’s cross-country team. Jill keeps telling you that her mother was a great runner, so she will also be a great runner. What do you think?

Nature is to __________ as nurture is to __________. 

Chromosomes are composed of complex molecules of __________. 

How is the total fertility rate (TFR) defined?

List three benefits of breastfeeding

Match the milestone to the correct age

Alzheimer’s disease has a gradual onset with subtle personality changes and memory loss

Nearly all human cells have __________ chromosomes. 

What is conservation?

In the past in many cultures, boys were required to engage in violent rituals in which they were to submit to and sometimes engage in bloodletting of various kinds. Why have these rituals declined in frequency or disappeared?