The Mojave Desert of the western United States is characterized by a hot, dry climate. Scientists predict that temperatures in this region will increase by an average of 4.7° F over the next 30 years. Birds found here (like ground-dwelling roadrunners) are endotherms and have many adaptations to reduce the amount of heat absorbed into the body while active in the daytime. If temperatures increase in this area as predicted, how might the plumage (the feathers covering the body) of these roadrunners change under the influence of natural selection? 1:The plumage will likely become longer and increase heat absorption into the body. 2:The plumage will likely become darker and increase heat absorbed from the environment. 3:The plumaqe will likely become lighter and increase heat reflected away from the body. 4:The plumage will likely become thicker and increase the amount of heat trapped by the body.

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Ecological adaptations

An ecological adaptation is any morphological, physiological, or behavioral trait of an organism that allows it to survive and reproduce in a habitat or ecosystem. Adaptation is a biological mechanism by which an organism gradually gets more acclimated to its surroundings.