Do you mean "why"?
They are the main source for all living organisms because they provide energy, relatively short term, for any creature that consumes them.
Answer:
the two careers that don't require any college education are a dental assistant and a home health aide
Explanation:
using the process of elimination....
a dietitian requires a bachelor's degree,
physician assistant needs a masters degree (in most cases)
social worker needs a bachelor's degree
this means the other 2 remaining options...
dental assistant & a home health aide do not require a college education
3 is a Black Hole. 5 is protostar
It helps because say the hinge joint had a structure as one of a ball-and-socket joint the knee (where the hinge joint is located) wouldn't bend it would rotate/ spin like our shoulders. This is how classifying joints according to their structure and function can/ may help describe human movement.
