Where would you start when describing the blood flow through the circulatory system? (mainly the heart) i need to know because i'm writing a paper about the blood flow of the circulatory system from the perspective of a red blood cell. 8th grade biology

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees

Kidney stones are tiny crystals of calcium or magnesium that block the narrow sections of the excretory system. which symptoms would a person with kidney stones experience? a. inability to store urine; pain in the bladder b. inability to store urine; pain in the urethra c. reduced urine flow; pain in the bladder d. reduced urine flow; pain in the urethra

Color blindness is a recessive sex linked human trait. if a color blind father and a mother with normal color vision have a color blind son what must be the mothers genotype? a. xn yn b. xn xn c. xn y d. xn xn