Answer:
The digestive system is responsible for taking whole foods and turning them into energy and nutrients to allow the body to function, grow, and repair itself.
Explanation:
Answer: Essential body fat is about 3% for men and 12% for women. However, research suggests that for best health and fitness men's body fat should range between 10-18%, and the women's range is 15-23%. Being over-fat, or having a high ratio of body fat to lean body mass, is associated with a higher risk for chronic disease.
Explanation:
Evaluating your skills is a key component to a successful physical activity action plan. Assessing yourself through physical tests (e.g. weight and girth measurements) could give you an idea what exactly you want to happen in your training program. Aside from knowing your structure, you should also assess yourself if you are fit enough or you have certain medical conditions that would prohibit you from performing certain activities (e.g. high blood pressure, hypertension).
In doing so, you not only ensure the success of your training action plan, but you also secured your safety before executing the activities you assigned for yourself.
Answer:
The correct answer is C. They are found on the end of bronchioles.
Explanation:
Alveoli are the sac-like structures that are formed by the terminal bronchioles so alveoli are the terminal structures through which many air sacs are raised called alveoli which helps in the transport and exchange of CO₂ and O₂ between lungs and blood.
Blood capillaries surround each alveolus and carbon dioxide moves from blood present in these capillaries to alveoli because the partial pressure of carbon dioxide is higher in blood capillaries than in alveoli and oxygen moves from alveoli to blood because the partial pressure of oxygen is higher in alveoli than blood.
Therefore the correct answer is C. They are found on the end of bronchioles.
