premise: hiding can be used to avoid something sent2: color is a property of something that describes how that something looks sent3: some environments change colors sent4: avoiding predators has a positive impact on an organism 's survival sent5: camouflage is used for hiding by animals from predators sent6: a chameleon can change colors sent7: an animal is a kind of organism sent8: an example of camouflage is an organism looking like its environment.
hypothesis: changing colors can have a positive impact on an animal's survival