Answer:
Respect for persons
Explanation:
Belmont principles are guidelines that promote the protection and use of ethics with scientific research volunteers. In other words, these principles stipulate that researchers, when establishing research that needs the participation of human beings, treat them with ethical principles that promote their protection and safety, avoiding abuse and physical and psychological problems.
These principles are: Respect for people, Beneficence and Justice.
The principle Respect for people is what promotes the obligation of researchers to use the consent form, which must be signed by the volunteers claiming that they accept to participate in the research. In addition, this principle guarantees that volunteers will not be deceived and will be treated with courtesy and respect.
Anemia can be caused by a great amount of things. The most common reason is through iron deficiency, which is linked to other illnesses that cause anemia. Or, through malnutrition where the patient is not getting the right amount of vitamins or minerals in their diet. The protein hemoglobin contains iron, which is why the hemoglobin levels drop at times when there is anemia
Answer:
B) Valves closing
Explanation:
A healthy heart makes a lub-dub sound with each beat. This sound comes from the valves shutting on the blood inside the heart. The first sound (the lub) happens when the mitral and tricuspid valves close.
