Answer:
The membrane is actually semi-permeable.
Explanation:
The membrane being semi-permeable means that, not all the things come in and out of the cell, only if it's really needed. The cell works in a gradient way, and that means that, to balance things, the cell will put in it a substance in a very high concentration outside of it, just to balance things. And this would happen to potassium, the cell would put it inside to balance this gradient, and once all sides have the same amount of potassium, it will stop, and the gradient is finally equal.
the answer is B: It is made up of amino acids.
Answer:
air
Explanation:
Of the three phases of matter (gas, liquid, and solid), sound waves travel the slowest through gases, faster through liquids, and fastest through solids.
One good reason would be that they could give someone, or many people who are in desperate need of a new organ, a second chance at life.
Answer:
Hello!!! Princess Sakura here ^^
Explanation:
True because the xylem transports water from the roots to the rest of the plant's body above ground and can only move up, whereas the phloem transports organic compounds both up and down the plant.
