The Yellowstone National Park food web shown below What would be the most likely effect of adding wolves to the park?
A. Decreased cottonwood population
B. Increased balsam fir population
C. Increased moose population
D. Increased snowshoe hare population

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

i wish i could with all of them i can barley see the first one so here's the answer to the first one b

answerwestern plateau,     central lowlands,     great dividing range;