Julie has an ectomorph body type, which means she is tall and thin with long arms and legs.

True
The different body types are: ectomorph, endomorph, mesomorph, or a combination of two of these types of body sizes. 

“People come in all shapes and sizes,” is a statement that supports size acceptance. All human beings have distinct characteristics that they have acquired from their parents. There really are different body types and it varies not only with genes but also in ethnicity. Some Westerners are born with bigger structures compared to their Asian counterparts. Africans also have a different body structure compared to Europeans.

Idk why don’t you pay attention ok class

People who utilizes the progression principle will ensure their exercise program increases in frequency, intensity, time, and type. the changes need to happen gradually in order to ensure they make gains in their fitness program. a person who doesn't utilize the progression principle can still gain health benefits from exercising, but will not continue to improve in cardiovascular fitness.