Khan Academy Static

Any species could take over the Earth just by reproducing if it had unlimited resources. That includes bacteria, worms and snakes, which might not be things you want covering the Earth's surface in a four-foot layer! Learn how populations grow and why real populations in nature always have limits on their growth.

9758_Population_regulation.html

9760_Exponential_growth.html

9762_r_and_K_selection.html

9763_Thomas_Malthus_and_population_growth.html

9761_Logistic_growth.html

9757_Exponential_and_logistic_growth_in_populations.html

9759_Predator_prey_cycles.html