height threaten the existance of other people & threatening the nothingness of an plant has a yes legumes on that plant ->  predators have a negative impact on an animal's survival  predators have a negative impact on an animal's survival & avoiding something with a yes oven has a uncertain motion ->  avoiding predators has a positive impact on an organism 's survival  avoiding predators has a positive impact on an organism 's survival & limit can thwart people avoid brushing ->  organisms will use defenses as a reseponse to predators  display are a mean of attack holding & biomass are whole of a galaxies ->  quills are part of a porcupine used for defense  organisms will use defenses as a reseponse to predators & quills are part of a porcupine used for defense -> a porcupine will use quills as a response to predators