During the stage of the general adaptation syndrome, intense arousal occurs as the body mobilizes internal physical resources to meet the demands of the stress-producing event.

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.

oxygen +1 most likely