He statement "matter can be neither created nor destroyed by chemical means, but it can be changed from one form to another" is the chemical law of

(a) conservation of matter.
b. atomic disintegration.
c. conservation of energy.
d. definite proportions.

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

The hematodinium parasite becomes less of a problem for the blue crab when the crab is very young. fishing is thriving in the region. the crab moves to less salty water. a significant percentage of the population is impacted.

18. which statement about cancer is true?