HELPPP!!! WILL GIVE 23 POINTS Which of the following scenarios is most likely using the same type of cell transport as the sodium-potassium pump?

A.
A child's badly skinned knee heals rapidly.
B.
Animal cells control calcium levels to maintain proper signaling between cells.
C.
Cell activities remove fluid in a patient with swollen abdominal tissues.
D.
Minerals from food diffuse into an animal's intestine.

Apart of an ecosystem that can restrict the growth of a population is referred to as

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

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming