Variations within a species are an important part of Charles Darwin's theory of evolution. Which example can be explained by individual variation? The food source in a lake is not enough to support the bass population, but it can support the trout. A population of brown bears has doubled in the past 10 years as its habitat size has increased. Owls and foxes compete fiercely against each other for small rodents in their habitat. Brightly colored cardinals are better able to survive and to reproduce than darker cardinals

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

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primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs