Prokaryote cells have a nucleus? true or false?

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.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.