Process of 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

Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice

• The hawks eat more dark mice than light mice because the dark mice taste better

• The hawks eat more light mice than dark mice because they can see the light mice more easily

• The hawks eat more dark mice than light mice because they can see the dark mice more easily

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

What process is being shown in this image?

• Variation

• Natural Selection

• Selective Breeding

• Homeostasis

Tags

NGSS.MS-LS4-4

Natural selection occurs during the lifetime of a single organism.

• True

• False

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-LS2-4

NGSS.MS-LS4-4

What type of environment do you think this data was collected from?

• forest with primarily white-bark trees

• forest with primarily dark-bark trees

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS4-4

A yellow morph and green morph of an insect lives in the rainforest canopy. You would expect:

• the green population to increase and the yellow to decrease

• both populations should stay the same

• both populations will increase

• the green population to decrease and the yellow to increaseThis is a wrong answer

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

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-LS1-4

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-LS1-5

NGSS.MS-LS2-4

NGSS.MS-LS4-4