Urinary system or the excretory system is used to study and observe the mechanism of toxin release, and conservations of essential elements and water.
The reproductive system is studied to observe any disorder in the reproductive organs, or the offspring, during pregnancy.
The endocrine system gives information about the hormones, their action on various conditions, their imbalances and how they can be cured. All the systems of the body are interrelated and have to be studied to maintain the well-being of the humans', 
Medical terms like 
Mamm are used for breast
Mast is used for mastectomy
Neo is for new fetus
Exo is for the exocrine system 
Para is used for parathyroid and so on.
        
             
        
        
        
Answer:
this is a "in your own words" question where you put what you believe. so there isnt really a wrong answer
Explanation:
i would put yes, learning about nutrition has helped me understand things about what humans eat and that could potentially be bad for you and what could be good for the body and give you the energy and nutrients you need.
 
        
             
        
        
        
Answer:
A babysitter
Explanation:
because they care for you and even grow to love you. They also have to keep you occupied so children will not start to get out of hand because of boredom.
 
        
             
        
        
        
Well, if you are able to put it in your own words, centuries back, when are ancestors were alive, we didn’t have things like McDonald’s. For a lot of people back then, they wouldn’t eat for a day or two then find a buffalo or something then eat it, and most of the time, they were running all day every day trying to find food. Getting lots of exercise. Nowadays, u can get into your car, and drive to A fast food place and get whatever u want. With no exercise.
        
             
        
        
        
Answer:
Starting a fitness program may be one of the best things you can do for your health. Physical activity can reduce your risk of chronic disease, improve your ... using a weight or resistance level heavy enough to tire your muscles after about 12 to 15 ... In high-interval intensity training, you perform short bursts of high-intensity ...
Explanation:
you have to study