The cells in the heart need a constant supply of nutrients / oxygen and to get rid of their waste products ans that why it needs its own special circulatory system.
Answer:
B
Explanation:
Low-fat or fat free dairy product greatly helps in reducing the chance of getting osteoporosis and if you want to fully prevent it, you can use cardiovascular exercises like dancing, walking, jogging, running, yoga, water aerobics, tai chi, ect.
(hope that answers your question :D)
Hi there!! Cilia are very small fine hairlike projection's/tissues, who's primary responsibilities in the airway is to make sure that it is clear. To be more specific... Cilia line the airways' trachea down. These cilia will do two things; They will trap germs and particulate matter (dust, dander, etc..), before then moving the trapped objects upward to the area where the airway meets the larynx, where you then swallow it... Additionally you can expel it eventually with a cough.
A person should at least get 60 minutes of physical activity a day.
The Luteinizing hormone (LH) is what you are looking for
