Answer:
Muscular contractions are the mechanism that allow an individual, animal, or human, to move its body, move the food in its digestive system, or a host of other activities. The contraction shortens the muscle which moves the rigid structures, bones, to which they are attached.
Explanation:
Compiles statistics and information on disease, publishes health information, and investigates and addresses serious health problems throughout the world. would work with providing vaccinations in third world countries.
Top two chambers of the heart
Perception,inspiration and motivation
Answer: Cardiovascular endurance.
Muscular strength.
Muscular endurance.
Flexibility.
Body composition.
Explanation: if its the FITT principle it would be freqeuncy, intesity, type, time. hope it helps please give brainliest.
