Natural Selection Video

What is the variation in a trait shown in the frogs in this video?

• variation in skin color

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  variation in ability to jump

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  variation in food resources

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  variation in warts

What happened to change the frog population over time?

• predators ate more light colored frogs, so the dark colored frogs survived to reproduce

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  the dark colored frogs were stronger so they survived to reproduce

What will most likely happen to the light green baby frog in the environment these frogs are in currently (where light frogs get eaten more frequently by visual predators)?

• it will be eaten by a predator and therefore not be able to pass on its light colored genes to the next generation

• it will adapt and change its skin color to dark green to avoid being eaten by a predator

What are these resistant bacteria able to do the others couldn't?  Why?

• survive the effects of the antibiotic because they have genes that allow them to not be killed by that particular antibiotic

• changed their genes and made themselves stronger to defeat the antibiotic