Natural Selection and Adaptations
Explore the principles of natural selection and various adaptations in living organisms with this comprehensive worksheet for Grade 11 science students.
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Natural Selection and Adaptations
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Date:
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Read each question carefully and answer to the best of your ability. Provide detailed explanations where requested.
1. Natural selection is the process by which populations of organisms adapt and change. It is driven by four key principles: variation, heritability, , and differential reproduction.
2. An is a trait that helps an organism survive and reproduce in its specific environment.
3. The struggle for existence among individuals in a population is often referred to as .
1. Which of the following is NOT a primary component of natural selection?
Variation in traits
Inheritance of traits
Random mating
Differential survival and reproduction
2. The process by which organisms that are better adapted to their environment tend to survive and produce more offspring is called:
Genetic drift
Mutation
Natural selection
Artificial selection
1. Adaptations always involve a physical change in an organism.
True
False
2. Natural selection acts on individuals, but evolution occurs in populations.
True
False
1. Explain the concept of 'fitness' in the context of natural selection.
2. Describe how geographic isolation can contribute to the formation of new species through natural selection.
Observe the image below showing different finch beaks. How do these variations demonstrate adaptation through natural selection?
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