Plant cells
1 cell wall
2 chloroplast
3 vacoule
animal cells
1 mitochondria
2 food vacoule
Answer:
c
Explanation:
Definition: The tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
geological isolation, if the birds that develop mutations do not have any competition they can survive.
Answer:
An abundance of food.........
