1) If a person has neither of the two blood antigens, what is his or her blood type?

A
B
O
AB

4) Testosterone is produced in the?
testes
bulbourethral glands
prostate glands
seminal vesticles

6. What type of cell is capable of digesting and engulfing dangerous particles or cells harmful to the body?
phagocyte
perforins
histamine
antigen

7. the thickening and hardening of the artery wall is called?
arteriosclerosis
varicose veins
congestive vein failure
thrombophlebitis

1) If a person has neither of the two blood antigens, their blood type is O. To determine the blood type, we need to know about two blood antigens - A and B. There are four possible blood types: A, B, AB, and O.

To find the answer to this question, we can refer to the ABO blood typing system. This system classifies blood types based on the presence or absence of specific antigens on the surface of red blood cells.

Individuals with type A blood have antigen A on their red blood cells, while individuals with type B blood have antigen B. Those with type AB blood have both antigen A and B, and individuals with type O blood have neither antigen.

4) Testosterone is produced in the testes. To determine where a hormone like testosterone is produced, we can refer to the anatomy and physiology of the human body. Testosterone is primarily secreted by the testes in males. It plays a crucial role in male reproductive function, development, and secondary sexual characteristics.

6) The type of cell capable of digesting and engulfing dangerous particles or cells harmful to the body is a phagocyte. To determine the answer, we need to understand the immune system and its components. Phagocytes are a type of white blood cell (leukocyte) that can engulf and destroy harmful microorganisms, foreign particles, and cellular debris through a process called phagocytosis. They are an essential part of the innate immune response.

7) The thickening and hardening of the artery wall is called arteriosclerosis. To find the answer to this question, we can look into the medical terminology related to the cardiovascular system. Arteriosclerosis refers to the general condition of the arteries becoming hardened and less elastic. It is often associated with aging, high blood pressure, and the build-up of fatty deposits (atherosclerosis) within the arterial walls. Other options listed, such as varicose veins, congestive vein failure, and thrombophlebitis, refer to different conditions affecting veins rather than arteries.