Which of these statements is true about adaptive evolution? the ability to learn plays a key role in the process of adaptive evolution. viruses play a key role in the process of adaptive evolution. sudden changes in the somatic cells of organisms play a key role in the process of adaptive evolution..

The correct answer is "Sudden changes in the somatic cells of organisms play a key role in the process of adaptive evolution". Adaption in evolution is caused by sudden gene mutations that affect an organism's offspring and give it - potentially - a better chance of survival. For example, a giraffe who passed on a mutated gene for a slightly longer neck to its offspring gave its offspring a better chance of reaching untouched food, and thus a survival advantage.

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