What would be the most beneficial towards maintaining equilibrium in an ecosystem over a long period of time? a)organisms imported by humans from other environments
b)a sudden change in climate
c) a diversity of organisms
d)predators eliminated from the food chains

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

Mutations associated with albinism affect proteins involved in synthesis

1. which of the following transport mechanisms utilizes energy? a. osmosis b. diffusion c. facilitated diffusion d. endocytosis