The graph below shows the population growth in an area. Which of these could cause this population to stop increasing and stabilize?
a. increasing ratio of space to individuals in the population
b. decreasing ratio of predators to prey in the population
c. increasing ratio of offspring to parents in the population
d. decreasing ratio of food to individuals in the population

What were the main components of earth’s earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen

Body temperature is tightly regulated in mammals for example when external temperatures drop too much the body of a mammal responds by in order to its core temperature?

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