The parasympathetic division of the autonomic nervous system a. is associated with "fight or flight." b. opposes the effects of the sympathetic division. c. arises from parts of the spinal cord. d. uses the neurotransmitter norepinephrine.

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

Some of the money that people deposit into a bank eventually becomes a interjection into the economy when the bank