a period in which the densities of population increase or decrease at the same time. is called a? a. carrying capacity b. density-dependent factor c. density-independent factor d. boom-bust cycle

The answer would be D - boom and bust cycle. In a biological framework with two predator and two prey species, hypothesis predicts two manners by which the species' populace elements can end up coupled. On the off chance that the two predators eat both prey, at that point prey populaces will waver together, blasting when predators are uncommon and smashing when predators, looked with a prey excess, blast thus. In any case, if every predator eats a different prey, and the two prey species contend, hypothesis says the prey populaces will sway out of adjust from each other, as initial one, at that point alternate, commands assets.

The correct answer:   [c]:   "cell phone call" .