Natural Selection in Context Worksheet
📝 Worksheet medium ⏱️ 20 minutes 8 problems
Natural Selection in Context Worksheet
Grade 7 Science LearnCrux.com
Name:
Date:
Directions
- Fill in each blank carefully.
- Circle or mark the best answer for each multiple-choice question.
- Match each prompt to the best option before writing your answer.
- Use the larger space to show your thinking on word problems.
1. Natural selection acts on inherited variation across many __.
2. Which statement best describes natural selection?
3. Match the idea to its role: environment
Match with:
Answer:
4. A trait that improves survival in one environment may not be useful in another __.
5. Why is camouflage often used to explain natural selection?
6. Which response is the best scientific explanation?
7. Natural selection is a __ process, not a decision made by one organism.
8. Why should explanations of natural selection include reproduction as well as survival?
📋 Teacher Answer Key
1. generations
2. Traits that improve survival and reproduction in a given environment may become more common over time.
3. helps determine which traits are useful
4. environment
5. Camouflage can affect survival, which can then influence which inherited traits become more common
6. Darker insects survived better on dark surfaces and reproduced more often over many generations.
7. population
8. Traits become more common only when surviving organisms also pass inherited information to offspring