21. For each bone shape, list the type of ossification that usually occurs during its development:
a) long bones
b) flat bones
c) irregular

help if possible please and thank you :)

In which way does nicotine cause addiction? by stimulating the brain's pleasure center by increasing blood-sugar levels by decreasing dopamine levels by reducing depression and anxiety

What are the two things that all sociologists do in their studies?

Being is not a situational factor common to adults who commit violent acts against children.