Natural Selection and Adaptations

Do organisms "decide" to evolve and change?

• Yes, they know they need to change to survive 

• No, they change because of natural selection

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Where do adaptations come from?

• The individual organism decides to adapt

• Mutations that give an organism an advantage in its environment

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Mutations are important because they bring about

• death of the organism in which they develop

• genetic variation needed for a population to evolve

• benefits for the individual, not for the population

• Hardey-Weinberg equilibrium within a population

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The more genetic variation a population has,

the more likely it is for some individuals to

• evolve

• migrate

• survive

• mutate

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The gradual change in species over time is...

• Evolution

• Nucleotide 

• Adaptation

• Natural Selection

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The white feathers of a snowy owl allow it to blend in with its environment during the winter months (snow). This is an example of ________________

• Species

• Environmental Change

• Adaptation

• Variation

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What is another name for natural selection?

• survival of the smartest

• survival of the fastest

• survival of the biggest

• survival of the fittest

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Behavioral changes of individuals of a species that allow for better survival. (Acquired traits)

• Variation

• Adaptation

• Behavior

• Environment

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Since the 1800s humans have stopped burning coal, and the trees have returned to their original color. Which moth will be more successful in this environment?

• Dark moth

• Light moth

• Both will be equally successful

• Neither will be successful

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Organisms that are better adapted to the environment survive to pass traits to their offspring

• Natural Selection

• Homeostasis

• Selective Breeding

• Extinction

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