Plz help asap! How do membrane proteins contribute to the membrane potential? The sodium potassium pump results in a net positive charge that stores energy as voltage.
The proton pump results in the repulsion of cations to the negative intracellular membrane.
The attraction of anions inside of the cell contributes to the positive extracellular environment.
Aquaporins result in a combination of positive charges intracellularly and negative charges extracellularly.

How do adaptation affect a species?

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area

Are the earth's ocean floor and continents the same age geologically? why or why not?