The balance of nature can be upset by many reasons including natural disasters, human causes, not enough food or space or water. all of these things can affect the ecosystem’s (choose one)
- carrying capacity
- factors
- genetic drift
- animal migration

The correct answer should be Carrying capacity

Carrying capacity is the the number of people, animals, and other life forms, that an ecosystem can sustain without starting to degrade, and all these upsets can destroy it because it can cause people and animals to migrate somewhere or they can destroy the carrying capacity of the already existing one.

Cis your correct answer

Used to water and cool climates, probably not thick coated or fluffy. they most likely have thin coats and have to survive to find food. sorry if this wasn't the answer you were looking for..: )