Answer:
abrasion because it is not a chemical weathering like the other two
Explanation:
A farm because you have to water the plants and crops and give animals water
Answer:
No viruses are not considered as living organisms, until they enter the body of the host
The answer is fundamental niche
The right answer is <span>A) semi-permeable membrane
<span>A semi-permeable membrane is a membrane permeable to a liquid (solvent) and impermeable (or poorly permeable) to substances dissolved in the liquid (solute).
</span>The tubule of a kidney consists of a semi-permeable membrane and has also specific transporters which allow absorption and reabsorption. These "tools" allows some substances like ions to be absorbed/reabsorbed (by the transporters), without any changes in the concentration of the other substances (because both the membrane and the transporters stopped them).</span>