It takes 8 electrons to fill a shell.
Answe: Mutations can cause instant adaptations, while natural selection is the process by which adaptations occurs over a series of generations. Adaptations are changes or processes of changes by which an organism or species becomes better suited for its environment. A mutation is an alteration of the DNA sequence.
Explanation:
Density-dependent limiting factors cause a population's per capita growth rate to change—typically, to drop—with increasing population density
B because it’s mainly covering about forests
