Answer:
A bottom-up system concentrates attention on how resources (space and nutrients) influence higher trophic forms , whereas a top-down system focuses on interactions at top level consumers (predators) and their prey influence on lower trophic forms.
Explanation:
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<span>a) Moist air moves up as it encounters a mountain range.</span>
Be sessile (move from place to place very slowly, or not move at all)
For the first question, it's D. And the second question it's C.