Which items make up the largest percentage of waste produced by households and businesses?

a. aluminum cans
b. paper products
c. plastic bottles and packaging
d. yard waste, such as grass clippings and tree limbs

Growth of chest hair, deepening of the voice, and muscle growth are secondary sex characteristics. which most likely affects the development of these traits? testes ovaries prostate gland vulva

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

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture