Two male bighorn sheep butt heads to determine who gets the right to breed with a local group of females; a pack of wolves coordinate their strategy to attack a struggling newborn elk; a male peacock displays his feathers to entice a nearby hen to mate; and a school of tuna scatters and then reforms as a shark dashes quickly among them. all of these interactions represent

cancer   is   essentially   uncontrolled   mitosis   of specialized cells

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.