ATP molecules are commonly used to A) provide energy for an organism
B) Synthesize DNA
C) move molecules from a high to low concentration
D) balance the nutrients in an ecosystem

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

How does science influence the decisions made about social, economic, and political issues?

Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution