Conditions for Natural Selection

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

TRUE or FALSE: Natural selection will still occur if individuals are exactly the same.

• TRUE

• FALSE

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NGSS.MS-LS4-4

Due to pollution, a pond becomes darker over time. Which trait variation became more common?

• light fish

• dark fish

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NGSS.MS-LS2-4

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

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-LS4-4

Which organisms are most likely to survive?

• the best adapted

• the fastest

• the strongest

• the most domesticated (tamed)

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NGSS.MS-LS4-4

Definition: natural selection

• inherited characteristic that increases chances of survival

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

• a growing population causes a scarcity of resources

• differences in the DNA sequence

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NGSS.MS-LS2-4

NGSS.MS-LS4-4

According to fossil records, the horses that lived 50 million years ago were much smaller, weaker and slower than modern horses. Which process is most likely responsible for the changes that have led to the increased size, strength, and speed in horses?

• commensalism

• inbreeding

• migration

• evolution by natural selection

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NGSS.MS-LS4-1

NGSS.MS-LS4-2

How do you "win" at natural selection?

• survive

• go extinct

• survive & reproduce

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NGSS.MS-LS1-4

NGSS.MS-LS4-4

Which of the following is NOT a condition necessary for natural selection to occur?

• Variation in traits

• Inheritance of traits

• Overproduction of offspring

• Stable environment