Answer:
resource distribution is first with the geologic occurrence of resources on Earth . In other words where resources are located in any particular place may be rich in the resources people desire important others
Answer:
<em>The four parathyroid glands make more or less parathyroid hormone (PTH) in response to the level of calcium in the blood. When the calcium in our blood goes too low, the parathyroid glands make more PTH. Increased PTH causes the body to put more calcium into the blood.</em>
<em>MARK AS BRAINLIEST!</em>
Answer : The reason is Osmosis.
Explanation :
Osmosis : It is a type of process in which the movement of particles occurs from its high concentration to low concentration through the selective semi-permeable membrane.
From the given image we conclude that the molecule A diffuses across the membrane but molecule B do not due to the osmosis. That means the selective semi-permeable membrane allows only molecule A through it.
Hence, the reason is Osmosis.
