3 factors that lower biotic potential

The three factors are carrying capacity, density dependent factors, and density independent factors. The carrying capacity does not allow the population growth to exceed a certain amount. The density dependent factors like the pathogen would balance out the birth rate with the death rate. Density independent factors such as the hurricane and temperature would cause people to die and decrease the birth rate.

What is the biggest impact humans have had on the planet?

Humans take care of their houses, streets, and buildings. If humans vanish, then trees and plants would take over and cover the Earth, causing animals to roam. All the things humans have done on Earth would be destroyed.

How individual characteristics influence population sizes

The environment, resources, and birth rate have an influence on the population size. The way the species live in their natural habitat can affect the population. The population size would increase if the species are not threatened by other animals. If they live in a safe and comfortable environment, they would survive longer. The population size is dependent on the resources because if the resources are available when needed, then there is enough for the population. If there are less resources, it won't support the population. The birth rate also contributes to the size of the population. If there are too many babies, there wouldn't be that much resources to feed the whole population.