Answer:
C. Student 2
Explanation:
The community is the sum of all of the different populations in an area. All of the biotic(living) components of an ecosystem.
The only answer with more than one organisms is student 2's observation.
I believe the answer is C. Composition of earths core
One example would be freezing water in cracks of a sandstone sidewalk
the genetic information of a population of interbreeding organisms ? and I'm not sure ?
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Ions are charged atoms or molecules. The plasma membrane is analogous to a capacitor, storing and separating charge. The voltage across the membrane varies from cell to cell, but a typical value is that the inside of the cell is -65 mV (millivolts) relative to the outside.
This may suggest that positive ions will flow into the cell when ion channels open, but, as mentioned in the question, the movement of ions is determined by both concentration and voltage.
This so called "electrochemical potential" can be calculated using the Nernst equation.
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