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Grade 12 Natural Selection & Adaptation Worksheet with Answers
Grade 12 (US) · Year 13 (UK) · Class 12 (India) · Biology
Unit 2: Genetics & EvolutionEvolutionNGSS HS-LS4-4
Variation, mutation and natural selection, and how populations change over generations. This free high school worksheet has 11 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.
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Practice Sheetaethelsystems.comNatural Selection & Adaptation
Grade 12 · Biology
Name
Class
Date
Learning goal: Evolution · NGSS HS-LS4-4
Directions: Read each question carefully and write your answer on the line.
RememberNatural selection
- 1
What is natural selection?
- 2
What is artificial selection?
- 3
Peppered moths turned darker during the Industrial Revolution. Why?
- 4
Why do bacteria become resistant to antibiotics?
- 5
Give an example of artificial selection.
- 6
What is variation?
- 7
Darwin's finches had different beak shapes. Why?
- 8
What evidence supports evolution?
- 9
Do individuals evolve during their lifetime?
- 10
Who developed the theory of evolution by natural selection?
- 11
What is a mutation?
★ Challenge corner for fast finishers
On the Moon (no air), a hammer and a feather are dropped together. Which lands first?
How did I do?
Teacher's comments
Free printable worksheets with answer keys · aethelsystems.com/worksheets/biology/12/natural_selection
Answer key — Natural Selection & Adaptation (Grade 12)
- 1.individuals with helpful traits survive and reproduce more
- 2.humans breeding plants or animals for chosen traits
- 3.dark moths were better hidden on sooty trees and survived more
- 4.resistant bacteria survive and pass on the trait
- 5.dog breeds or crop varieties (any one)
- 6.differences in traits among individuals of a species
- 7.beaks adapted to different foods on different islands
- 8.fossils, DNA similarities and similar body structures
- 9.no — populations evolve over generations
- 10.Charles Darwin
- 11.a change in DNA
- ★they land at the same time
Answer key (click to show)
- 1.individuals with helpful traits survive and reproduce more
- 2.humans breeding plants or animals for chosen traits
- 3.dark moths were better hidden on sooty trees and survived more
- 4.resistant bacteria survive and pass on the trait
- 5.dog breeds or crop varieties (any one)
- 6.differences in traits among individuals of a species
- 7.beaks adapted to different foods on different islands
- 8.fossils, DNA similarities and similar body structures
- 9.no — populations evolve over generations
- 10.Charles Darwin
- 11.a change in DNA
- ★they land at the same time (challenge corner)
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