In an environmental science class, the teacher asked students to discuss microscopic and near-microscopic organisms that live in bodies of water. Which term describes these organisms? A)autotrophs
B)heterotrophs
C)seaweed
D)rotifers
E)planktons

Firms use marginal analysis to determine prices by a) changing prices in accordance with information from retailers. b) using comparisons with strong competitors to position prices accordingly. c) examining the effect on revenue of small changes to the price of one item. d) trying to minimize production costs by using better and more efficient methods.

Briefly explain one difference in the practice of realpolitik by louis napoleon and otto von bismarck.

Which organisims can cause diseases a. micro organisims b. multicellular organisnims c. both d. neither