7.11B Variation within a Population

Percy lives in the city of Ocala in central Florida. This summer, he saw many birds at the feeders in his yard. He noticed that when the weather turned colder there were different birds at the feeders. Which statement best describes why there were different types of birds in Percy's yard?

• Some birds cannot survive in cold weather and must fly to other environments to survive.

• Birds never remain in one spot and are constantly moving to avoid being eaten by predators.

• Insects and worms head south during the cold months, and the birds follow the food source.

• Most birds cannot survive in warm weather, and only the strongest ones survive to see cold weather.

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7.11B

Rabbits in most areas have a brown coat. The arctic hare has a bright white coat in winter. How does the arctic hare's white color help it survive?

• It makes the hare warmer during the summer.

• It makes the hare appear larger to predators.

• It helps the hare blend into its background.

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7.11B

​ __________is the process of change by which an organism becomes better suited to its environment.

​

• Adaptation
• Variation
• Hibernation
• Appendages

What do these animals do in the winter?

• Hibernate

• Play

• Migrate

• Migrate

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7.11B

Adaptation is...

• A change or the process of change by which an organism or species becomes better suited to its environment.

• A change or the process of change by which an organism or species is not able to adapt and survive.

• A change or process that causes no change in a species.

• A change or process in a species that helps it become bigger or smaller.

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7.11B