Na/K concentration in and out of the cell at the homeostatic level. It does this by pumping sodium and potassium ions in and out when it's needed of it in order to maintain the concentration of both ions stable across time.
Answer:
The Answer Is b.
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Explanation:
South american civilization:
- The invention of various type of plants that could be used for medicinal purposes.
- The invention of various tools that could be used for artworks
Meso American civilization:
- The invention of early agricultural land structuring for irrigation system
- The invention of earliest calendar to distinguish time/period
North American civilization:
- Popularized the use of tobacco (now it become the most used drug in the world)
- Invent several techniques to raise animals.
The american revolution was precipitated , in part , by a series of laws passed, for the british government and served to increase the taxes paid by the colonists .
