Certain bacteria live in plant roots and receive sugars from the plants. The bacteria provide a source of useful nitrogen for the plants. This best describes which type of relationship?

parasitism
competition
mutualism
predation

Census data is an example of: public information. private behavior. private information. public behavior.

Though most presidents have claimed affiliation with a christian church, the only roman catholic president has been a) abraham lincoln. b) john f. kennedy. c) george washington. d) franklin d. roosevelt.

The state court system is a tier system containing courts of first instance, intermediate appellate courts, and a. two . . the united state supreme court b. three . . the state supreme court c. two . . circuit courts d. three . . district courts select the best answer from the choices provided a b c d