Answer:
A buffer
Explanation:
A buffer is composed of a weak acid and a conjugate base. They are resistant to pH because of equilibrium between the acid and its conjugate base.
Answer:
Maintaining a healthy weight reduces the stress on the heart and blood vessels.
Explanation: edge 2020
Answer:
certain foods can give your skin an orange tint
Explanation:
foods such as carrots, sweet potatoes, oranges could turn your skin a yellowish orange tint- its a condition called carotenemia or carotenoderma
Patients of hospitals with a high index of suspicion, and Healthcare providers that utilize needles ( primarily because blood from either can get into the wounds of one another).
Additionally I think servicemen are obligated to have one done on them. Additionally those who wish to donate blood are required to have a negative blood test.