Final answer:
Human actions can cause overabundance in species through the introduction of exotic species, over-harvesting of organisms, and activities like pesticide use and habitat destruction.
Step-by-step explanation:
Human actions can cause some species to become overabundant through various means.
One way is through the introduction of exotic species into new habitats. These species can carry diseases, prey on native species, and disrupt food webs. Because they lack local predators, they can out-compete native species and become overabundant.
Another way is through over-harvesting of fish, trees, and other organisms. This can threaten the survival of these species and the species that depend on them.
Lastly, activities such as the use of pesticides, herbicides, and habitat destruction can also limit the growth of populations.