Natural Selection

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

• Variation
• Adaptation
• Behavior
• Environment

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NGSS.MS-LS4-4

Where the better adapted organisms survive to pass traits along to offspring.

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

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NGSS.MS-LS4-4

What are the most studied animals in the galapagos?

• Finches
• Tortoises
• Turtles
• Lizards

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What is the advantage of having different shaped beaks?

• To look different from other species.
• To be able to eat the food readily available in the environment.
• To protect itself against predators.
• To protect itself against prey.

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NGSS.MS-LS4-4

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.
• Because they come from dominant alleles.
• Because they come from recessive alleles.
• Because the trait is an acquired phenotype.

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NGSS.MS-LS1-4

NGSS.MS-LS4-4

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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NGSS.MS-LS4-4

What word describes a trait that helps an organism survive in its environment?

• natural selection

• mutation

• camouflage

• adaptation

The process of organisms changing over time; organisms with traits better suited to their environment tend to survive and reproduce.

• Variation Mode

• Natural Selection

• Artificial Selection

• Gene Pool Analysis

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NGSS.MS-LS4-2

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What is most likely to happen to moth populations in the picture shown?

• Light moths--hunted easily, dark moths--population increase

• Dark moths--hunted easily, dark moths--population increase

• Light moths--hunted easily, light moths--population increase

• Lights moths will change their color to match dark moths.

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NGSS.MS-LS2-4

NGSS.MS-LS4-4

Definition: Natural Selection

• inherited characteristic that increases chances of survival

• a growing population causes a scarcity of resources

• organisms with traits well suited to their environment survive and reproduce at a greater rate

• differences in the DNA sequence

Tags

NGSS.MS-LS4-4