If ultraviolet light causes skin redness and pain, possible swelling, blisters, fever, headaches, then what does ultraviolet light cause? Answer choices: - purple haze - Something whose growth is discouraged by heavy wet soils - Something that can be converted to kinetic and heat energy by a motor - freezing - skin redness and pain, possible swelling, blisters, fever, headaches - water vapor rising into colder regions of the atmosphere and condensing - loud sounds - Something that take eight minutes to travel to the Earth
skin redness and pain, possible swelling, blisters, fever, headaches

If hormones affect cell aging, then what affects cell aging? Answer choices: - hormones - radiation - Smoking - fat - acid - temperature - cigarettes - weather
hormones

If at least some deuterostomes use pheromones to communicate with each other, then at least some deuterostomes use pheromones to do what? Answer choices: - attack prey - seed dispersal - share properties - deuterostome with each other - not communicate - Release energy - mate with females - communicate with each other
communicate with each other