Natural Selection Worksheet
Explore the principles of natural selection, adaptation, and evolution with this Grade 9 science worksheet.
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Natural Selection Worksheet
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Read each question carefully and answer to the best of your ability. This worksheet covers key concepts related to natural selection.
1. Which of the following is NOT a principle of natural selection?
Variation within a population
Inheritance of acquired traits
Overproduction of offspring
Differential survival and reproduction
2. What is an adaptation?
A sudden change in an organism's DNA
A trait that helps an organism survive and reproduce in its environment
The process by which humans breed animals for specific traits
The movement of organisms from one habitat to another
3. Natural selection is often summarized as 'survival of the '.
4. The variety of life in the world or in a particular habitat or ecosystem is called .
5. Explain how environmental pressures contribute to natural selection. Provide an example.
6. Observe the image below showing different finch beaks. How do these variations demonstrate natural selection?
7. Individuals can evolve during their lifetime.
True
False
8. Genetic variation is essential for natural selection to occur.
True
False
Use the words below to complete the sentences.
9. A trait that increases an organism's chance of survival and reproduction is called an .
10. The process by which populations change over time is known as .
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