What is the primary effect of histamine?

A. The primary follicle is an earlier stage in the development of the ovarian follicle, not the structure that forms after ovulation.
B. The zygote is the result of fertilization, formed when the sperm and egg unite, but it does not form from the follicle after ovulation.
C. The corpus luteum forms from the remains of the follicle after ovulation. It secretes progesterone to support early pregnancy or prepares to degenerate if pregnancy does not occur.
D. The oocyte is the egg cell itself, which is released during ovulation, but it is not the structure that forms from the follicle after ovulation.

A. Evaporation is the process by which heat is lost as a liquid (like sweat) turns into a gas. This is not applicable in the case of submersion in cold water, as evaporation only occurs when moisture is on the skin and exposed to air.

B. Convection refers to the transfer of heat through the movement of air or fluids. While cold water can create a convection effect on the body, the primary heat loss in water is due to conduction rather than convection.

C. Conduction is the direct transfer of heat from one substance to another through physical contact. When the body is submerged in cold water, heat is lost to the water through conduction, as the colder water draws heat away from the body.

D. Radiation refers to heat loss through infrared radiation, typically when the body releases heat into the surrounding air. This is not the primary method of heat loss in cold water.