NS/1
1. What is natural selection?
A. Humans choosing traits in organisms
B. Organisms surviving based on helpful traits
C. Animals choosing their environment
B. Organisms surviving based on helpful traits
11. Which organism is most likely to survive?
A. One poorly suited to its environment
B. One with helpful traits
C. One with no variation
B. One with helpful traits
2. Which is an example of natural selection?
A. Farmers breeding cows for more milk
B. Scientists cloning plants
C. A giraffe with a long neck surviving better
C. A giraffe with a long neck surviving better
12. What causes variation in a population?
A. No reproduction
B. Identical traits
C. Differences in traits
C. Differences in traits
3. What is artificial selection?
A. Humans selecting traits they want
B. Nature choosing traits
C. Random changes in DNA
A. Humans selecting traits they want
13. Why is variation important?
A. It allows some organisms to survive changes
B. It makes all organisms the same
C. It prevents survival
A. It allows some organisms to survive changes
4. Which is an example of artificial selection?
A. Dogs bred for specific traits
B. Wolves evolving in the wild
C. Birds migrating south
A. Dogs bred for specific traits
14. Which is NOT an example of natural selection?
A. Peppered moths changing color over time
B. Breeding horses for speed
C. Bacteria becoming resistant to antibiotics
B. Breeding horses for speed
5. A trait that helps an organism survive is called a:
A. Mutation
B. Adaptation
C. Weakness
B. Adaptation
15. What role do humans play in artificial selection?
A. No role
B. They stop evolution
C. They select traits
C. They select traits
6. Which trait would help a rabbit survive in a snowy environment?
A. Bright red fur
B. Brown fur
C. White fur
C. White fur
16. A dog breeder choosing only the smallest dogs to reproduce is:
A. Artificial selection
B. Adaptation
C. Natural selection
A. Artificial selection
7. Who is known for developing the idea of natural selection?
A. Isaac Newton
B. Charles Darwin
C. Albert Einstein
B. Charles Darwin
17. Over many generations, natural selection can lead to:
A. Extinction only
B. Evolution
C. No change
B. Evolution
8. What happens to helpful traits over time?
A. They become more common
B. They disappear
C. They stay the same
A. They become more common
18. Which trait would most likely be selected in a desert environment?
A. Bright colors
B. Thick fur
C. Ability to store water
C. Ability to store water
9. Which best describes adaptation?
A. A temporary change
B. A learned behavior
C. A trait that improves survival
C. A trait that improves survival
19. What happens to organisms without helpful traits?
A. They always survive
B. They are more likely to die
C. They reproduce more
B. They are more likely to die
10. Farmers breeding crops that grow faster is an example of:
A. Mutation
B. Natural selection
C. Artificial selection
C. Artificial selection
20. Artificial selection usually happens faster than natural selection because:
A. Humans control the process
B. It takes millions of years
C. It is random
A. Humans control the process