Separated Species A population of mice live in a light, sandy environment. The majority of mice have light-colored fur, and the remaining mice have either medium-colored fur or dark-colored fur. A flood occurs in the area, creating a river that separates the population and changes the color of the ground on either side. After a long period of time, the water dries up and the two groups of mice are able to interact again. After the change, mice from different sides are unable to breed with each other. The pictures show the environment before, during, and after the change Original Environment 75% 87% 96% North side 5% Environments after separation by water The table shows the frequency of fur color across the populations when the mice were separated by the water. North Side Light fur Medium furDark furSouth Side Light fur Medium furDark fur Generation 1 85% 12% 45% 3% 5% Generation 5 50% Generation 10 20% Generation 1 90% 5% Generation 570% 7% Generation 10 37% Generation 15 % Generation 15 10% Generation 20 0% Generation 20 0% 5% 5% 4% South side 15% Environment after water dries up 6% 6% 23% 58% 84% 94% Which BEST describes why traits change over the generations of mice? O Traits that help mice overcome physical barriers are passed onto offspring O Traits that make mice different from one another are passed onto offspring Traits that are beneficial for surviving in the environment are passed onto offspring. O Traits that change the color of mice so they are more visible are passed onto offspring.

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Separated Species
A population of mice live in a light, sandy environment. The majority of mice have light-colored fur, and the remaining mice have either medium-colored fur or dark-colored fur. A flood occurs in the
area, creating a river that separates the population and changes the color of the ground on either side. After a long period of time, the water dries up and the two groups of mice are able to interact
again. After the change, mice from different sides are unable to breed with each other. The pictures show the environment before, during, and after the change.
Original Environment
Generation 5 50%
Generation 10 20%
Generation 15 8%
The table shows the frequency of fur color across the populations when the mice were separated by the water.
North Side Light fur Medium fur Dark fur South Side
Light fur Medium fur Dark fur
Generation 1
85%
12%
3%
90%
5%
5%
Generation 20 0%
45%
75%
87%
96%
North side
5%
5%
Environments after
separation by water
5%
4%
South side
Generation 1
Generation 5
70%
Generation 10 37%
Generation 15 10%
Generation 20 0%
7%
5%
6%
Environment after
water dries up
6%
23%
58%
84%
94%
Which BEST describes why traits change over the generations of mice?
O
O
A.
B.
Traits that help mice overcome physical barriers are passed onto offspring.
Traits that make mice different from one another are passed onto offspring.
C. Traits that are beneficial for surviving in the environment are passed onto offspring.
O
D. Traits that change the color of mice so they are more visible are passed onto offspring.
Transcribed Image Text:Separated Species A population of mice live in a light, sandy environment. The majority of mice have light-colored fur, and the remaining mice have either medium-colored fur or dark-colored fur. A flood occurs in the area, creating a river that separates the population and changes the color of the ground on either side. After a long period of time, the water dries up and the two groups of mice are able to interact again. After the change, mice from different sides are unable to breed with each other. The pictures show the environment before, during, and after the change. Original Environment Generation 5 50% Generation 10 20% Generation 15 8% The table shows the frequency of fur color across the populations when the mice were separated by the water. North Side Light fur Medium fur Dark fur South Side Light fur Medium fur Dark fur Generation 1 85% 12% 3% 90% 5% 5% Generation 20 0% 45% 75% 87% 96% North side 5% 5% Environments after separation by water 5% 4% South side Generation 1 Generation 5 70% Generation 10 37% Generation 15 10% Generation 20 0% 7% 5% 6% Environment after water dries up 6% 23% 58% 84% 94% Which BEST describes why traits change over the generations of mice? O O A. B. Traits that help mice overcome physical barriers are passed onto offspring. Traits that make mice different from one another are passed onto offspring. C. Traits that are beneficial for surviving in the environment are passed onto offspring. O D. Traits that change the color of mice so they are more visible are passed onto offspring.
Separated Species
A population of mice live in a light, sandy environment. The majority of mice have light-colored fur, and the remaining mice have either medium-colored fur or dark-colored fur. A flood occurs in the
area, creating a river that separates the population and changes the color of the ground on either side. After a long period of time, the water dries up and the two groups of mice are able to interact
again. After the change, mice from different sides are unable to breed with each other. The pictures show the environment before, during, and after the change.
Original Environment
Generation 5 50%
Generation 10 20%
Generation 15 8%
The table shows the frequency of fur color across the populations when the mice were separated by the water.
North Side Light fur Medium fur Dark fur South Side
Light fur Medium fur Dark fur
Generation 1
85%
12%
3%
90%
5%
5%
Generation 20 0%
45%
75%
87%
96%
North side
5%
5%
Environments after
separation by water
5%
4%
South side
Generation 1
Generation 5
70%
Generation 10 37%
Generation 15 10%
Generation 20 0%
7%
5%
6%
Environment after
water dries up
6%
23%
58%
84%
94%
Which BEST describes why traits change over the generations of mice?
O
O
A.
B.
Traits that help mice overcome physical barriers are passed onto offspring.
Traits that make mice different from one another are passed onto offspring.
C. Traits that are beneficial for surviving in the environment are passed onto offspring.
O
D. Traits that change the color of mice so they are more visible are passed onto offspring.
Transcribed Image Text:Separated Species A population of mice live in a light, sandy environment. The majority of mice have light-colored fur, and the remaining mice have either medium-colored fur or dark-colored fur. A flood occurs in the area, creating a river that separates the population and changes the color of the ground on either side. After a long period of time, the water dries up and the two groups of mice are able to interact again. After the change, mice from different sides are unable to breed with each other. The pictures show the environment before, during, and after the change. Original Environment Generation 5 50% Generation 10 20% Generation 15 8% The table shows the frequency of fur color across the populations when the mice were separated by the water. North Side Light fur Medium fur Dark fur South Side Light fur Medium fur Dark fur Generation 1 85% 12% 3% 90% 5% 5% Generation 20 0% 45% 75% 87% 96% North side 5% 5% Environments after separation by water 5% 4% South side Generation 1 Generation 5 70% Generation 10 37% Generation 15 10% Generation 20 0% 7% 5% 6% Environment after water dries up 6% 23% 58% 84% 94% Which BEST describes why traits change over the generations of mice? O O A. B. Traits that help mice overcome physical barriers are passed onto offspring. Traits that make mice different from one another are passed onto offspring. C. Traits that are beneficial for surviving in the environment are passed onto offspring. O D. Traits that change the color of mice so they are more visible are passed onto offspring.
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