Which of the following explains why conservation officers are necessary? to enforce federal laws that protect wildlife
to care for trees and animals in critical need
to conduct studies on trees in a natural environment
to perform clear-cutting and other deforestation services

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