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>
Answer:
Secretion
Explanation:
Not completely sure tho, good luck
Answer:
blind spot will not impair your vision
Explanation:
Blind spot may be defined as the point of our eyes where the optic nerve leaves our eye, which creates a "blind" spot as none of the receptor cells are located there.
A blind spot can only be studies in a laboratory because blind spot does not impair our vision. The blind spot falls on nose side of our retina, that means that the objects to our right side falls on the right eye's blind spot and objects to our left may fall on the left eye's blind spot. Thus, the blind spot normally does not impair our vision, since our eyes are moving and because our one eye catches what the other eye misses.