Question

15 multiple choice 5 points the hiv virus is transmitted by contaminated surfaces. blood and other body fluids. air. contaminated insects. 16 multiple choice 5 points an person with type a blood has: a antigens on their erythrocytes. both a and b antigens on their erythrocytes. b antigens on their erythrocytes. neither a nor b antigens on their erythrocytes. 17 true or false 5 points leukemia is a cancer of the thrombocytes. true false

Explanation:

• For question 15: HIV is mainly transmitted through blood and other body fluids (like semen, vaginal secretions, breast milk). It is not transmitted by contaminated surfaces, air, or contaminated insects.
• For question 16: Blood type is determined by the antigens on erythrocytes. Type A blood has A antigens.
• For question 17: Leukemia is a cancer of white blood cells (leukocytes), not thrombocytes (platelets).

Answer:

1. B. blood and other body fluids.
2. A. A antigens on their erythrocytes.
3. False.