Natural Selection

What is natural selection?

• process in which helpful traits become more common over time

• a trait that helps an organism survive better

Tags

NGSS.MS-LS4-4

Adaptations can be:

• camouflage

• ability to survive cold weather

• hunting skills

• all of the above

Tags

NGSS.MS-LS4-4

Differences in traits are called:

• natural selection

• genetic variations

• artificial selection

• adaptations

Tags

NGSS.MS-LS4-4

A species could go extinct if:

• food becomes more plentiful.

• members of the species have adaptations to enhance survival.

• the environment changes drastically and no one can adapt.

• there is less competition for resources.

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NGSS.HS-LS2-6

NGSS.HS-LS4-2

NGSS.HS-LS4-5

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.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS4-4

TRUE or FALSE: Natural selection will still occur if each individual has the same exact traits

• TRUE

• FALSE

Tags

NGSS.MS-LS4-4

How do you "win" at natural selection?

• survive

• go extinct

• survive & reproduce

Tags

NGSS.MS-LS4-4

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

• light fish

• dark fish

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

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

• Variation
• Adaptation
• Behavior
• Environment

Tags

NGSS.MS-LS4-4

When every organism of a species has died.

• Evolution
• Natural Selection
• Extinction
• Artificial Selection

Tags

NGSS.MS-LS4-1