Question

cfu - selective pressures
green anoles are lizards that can change their skin color rapidly in response to various stimuli. this adaptation is the result of
○ a selective breeding of lizards by humans.
○ beneficial traits passed from parents to offspring.
○ geographic isolation that prevented genetic mutation.
○ environmental pollutants that changed their genotype.

Explanation:

To determine the correct answer, we analyze each option:

• "A selective breeding of lizards by humans" is incorrect because green anoles' color - changing adaptation is a natural evolutionary trait, not a result of human - driven selective breeding.
• "Beneficial traits passed from parents to offspring" is correct. The ability to change skin color rapidly is a beneficial adaptive trait. Through the process of natural selection, beneficial traits are inherited from parents to offspring over generations as they increase the lizard's chances of survival and reproduction.
• "Geographic isolation that prevented genetic mutation" is incorrect. Geographic isolation can lead to speciation, but it does not prevent genetic mutations. In fact, mutations are a source of genetic variation, and this option does not explain the color - changing adaptation.
• "Environmental pollutants that changed their genotype" is incorrect. While environmental factors can influence organisms, the rapid skin - color - changing adaptation of green anoles is an evolutionary adaptation, not a direct result of pollutants changing their genotype. Pollutants are more likely to cause harmful effects or random genetic changes rather than a specific beneficial adaptation like this.

Answer:

B. beneficial traits passed from parents to offspring.