Natural Selection Lesson

Multiple Choice

Why is understanding natural selection important for studying evolution?

• It helps explain how species adapt and change over time.

• It shows how animals migrate across continents.

• It describes how plants grow in different climates.

• It focuses only on animal behavior.

Open Ended

How might natural selection lead to changes in the physical traits of animals, such as the length of a giraffe's neck or the color of a bird's feathers?

Multiple Choice

Which of the following is NOT a key concept in understanding how species change over time?

• Overproduction

• Variation

• Migration

• Inheritance

Open Ended

Explain how overproduction affects the survival of a species. Use examples from the images to support your answer.

Multiple Select

Which statements about genetic variation are correct?

• No two offspring are exactly alike.

• All variations are harmful.

• Differences are caused by genes passed down from parents.

• Offspring have different traits such as color and size.

Open Ended

How do adaptations help animals survive and reproduce in their environment?

Multiple Choice

Which of the following statements best explains why changes from natural selection take a long time?

• Because changes happen instantly in one generation.

• Because small changes accumulate over many generations.

• Because species do not change at all.

• Because only one animal changes at a time.

Open Ended

Explain how competition for resources can drive natural selection in a population.

Multiple Choice

Which of the following is an example of natural selection?

• Giraffes developing long necks to reach higher leaves

• Birds migrating to warmer climates

• Fish swimming in schools for protection

• Dogs learning tricks from humans

Open Ended

How does natural selection impact the evolution of species?