7.13D Natural vs Artificial Selection

What is natural selection?

• a living individual that can carry out life processes

• Process by which an organism that better adapts to their environment survive and reproduce

• Process by which a community better adapts to their environment to give traits to one another within their generation.

• the time between when an organism is born and when they reproduce

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NGSS.MS-LS4-4

What is Heredity?

• the passing of traits from one generation to the another from parent to offspring.

• the passing of traits from one generation to the parent and the common ancestor.

• the passing of characteristics from one generation to another from offspring to the parent.

• the passing of traits from one generation to another from descendents to the ancestors.

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Students were discussing how giraffes were shaped by their environment and how the environment was shaped by giraffes. Which statement is most likely correct?

• Student A: Giraffes had a random mutation that made their necks super long and able to eat tall trees.

• Student B: Trees grew taller to try and escape giraffes, while giraffes always had long necks

• Student C: Giraffes and trees grew together, trees growing taller and giraffe neck growing longer as ways to survive and reproduce.

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Dark colored moths on dark colored trees is ___.

• an adaptation

• natural selection

• a finite resource

• selective breeding

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NGSS.MS-LS4-4

Increasing helpful traits to an organism is one way a breeder may use selective breeding.

• True

• False

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NGSS.MS-LS4-5

Evidence shows that the wolf is the ancestor to all of the breeds of dogs shown below. How did this variation arise in a relatively short period of time?

• Genetic manipulation

• Natural Selection

• Random Chance

• Selective Breeding

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NGSS.MS-LS4-4

What selective breeding food crops might a farmer select?

• plant produces the least amount of grain

• plant was the most disease resistant

• the plant was the smelliest plant

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NGSS.MS-LS4-4

How is natural variation used in artificial selection?

• Humans chose to breed animals with little or no natural variation.

• Nature provides the variation among different organisms and humans select traits based on those differences.

• Nature only produces the most fit species.

• Natural variation is not used in selective breeding.

Which answer choice best describes natural selection (survival of the fittest)?

• The process of organisms mating, having many offspring, and living happily.

• The process by which favorable (good) traits tend to increase over time.

• The process by which unfavorable (not so good) traits tends to increase over time.

• The process of classifying unknown organisms.

Survival of the Fittest and Evolution were proposed by what scientist?

• Charles Darwin
• Albert Einstein
• Steven Hawking
• Isaac Newton

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