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>
Negative: Blood Glucose. The pancreas is releasing more and more insulin in order to get glucose levels in the blood back to a set point.
Positive: Estrogen levels. The anterior pituitary releases estrogen at different levels and the levels fluctuate.
Answer:
The independant variable is the Vaseline
The two mistakes were her not counting how many normal leaves their were and makin a faulty conclusion.
Photosynthesis stops when the gases stop flowing.
Explanation:
Biology. No explanation needed
I believe the correct answer would be the last option. After Frida stops exercising, it caused her body to be lack of oxygen that is why she breathes heavily to take in more oxygen from air. Also, with this, lactate is being transported to the liver. The lactate is a result of the anaerobic respiration.
Mutations result from an error in DNA replication, should it be from an alien source (like radiation) or simply a mistake in replication. Migration of organisms to a new population would alter the DNA by adding new genes, but it would not mutate them.
