Plants have systems and structures that help them maintain homeostasis - water or nutrient balance , gas exchange . Explain the systems and structures and how they are used by the plant to maintain homeostasis .

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

i didn't have the answer choices , but i tried my best.