32) Which of these is MOST LIKELY to contribute to the long-term instability of a local ecosystem? A) storms that uproot large trees in the area B) introduction of a non-native animal species C) seasonal migration of birds to and from the ecosystem D) flash floods that destroy the nests of local water birds

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

Aheterozygous normal male marries a woman with a sickle cell anemia. give the genotypes and possible phenotypes of the offspring

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