Polycythemia is a disease which causes an excessive number of red blood cells to be produced.
The disease is the result of a faulty gene. How would the flow of blood be affected by this
condition?
•Blood flow rate will increase.
•Blood viscosity will decrease.
•Blood pressure will increase.
•Blood volume will decrease.

Why do bacteria thrive even in hostile environments

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food