sodium.
Most cell membranes have a sodium-potassium pump. It is an enzyme that pumps sodium ions out of the cell and potassium ions into the cell. It moves 3 sodium ions out and 2 potassium ions in. Both ions are transported against the concentration gradient. Thus, the sodium-potassium pump provides one positive charge carrier to the extracellular space.
I like to make flash cards and have someone else help with answering. Write a question on one side and the answer on the other, and you can even do it yourself.
Answer:it causes when liquid or oil gets warm and rises.
When sun heats the gases it causes them to rise.
Explanation:
Francis Galton I'm pretty sure. It's been awhile since I've had this question
The answer to this is
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Hope This Helps!
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