Answer:
The correct answer is diffusion.
Diffusion is type of passive transport in which a substance is transported down the concentration gradient across the semi-permeable membrane.
In other words, a particle or molecule moves from the region of high concentration to the region of low concentration.
The particles or molecules keep moving until their concentrations become equal or uniform across the membrane.
In contrast, osmosis refers to the movement of water or solvent from the region of less concentration (of solute) to the region of high concentration (of solute) across the semi-permeable membrane.
Answer:
A. People cut down the trees in a forest, leaving less habitat for squirrels.
Explanation:
A large percentage of the depletion of an ecosystem can be attributed to anthropogenic or human activities. Ecosystems are naturally known to support or inhabit life. For example, many trees in an ecosystem are homes to living organisms such as birds, insects, snakes etc.
However, according to this question, an exemplary description of how humans can decrease an ecosystem's ability to support life is when "people cut down the trees in a forest, leaving less habitat for squirrels". This act will decrease the forest's ability to support life.
B. Sugar because it's an organic compound