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Quiz - Natural Selection, Taxonomy, & Dichotomous Keys
Contributed by: yasmine
  • 1. Small changes over time that add up to big differences are referred to as what?
A) natural selection
B) evolution
C) extinction
D) selective breeding
  • 2. A species could go extinct if:
A) food becomes more plentiful.
B) if the environment changes drastically and no one can adapt.
C) there is less competition for resources.
D) members of the species have adaptations to enhance survival.
  • 3. Darwin's first observations of natural selections involved:
A) peas
B) moths
C) birds
D) dogs
  • 4. Natural selection will still occur if each individual has the same exact traits.
A) False
B) True
  • 5. Differences in traits are called what?
A) artificial intelligence
B) genetic variation
C) natural selection
D) selective breeding
  • 6. When there's a mistake in copying genes, that is called what?
A) selection
B) mutation
C) competition
D) variation
  • 7. The fittest individuals in a population:
A) have the smallest chance of reproducing.
B) do not have adaptations that help them survive.
C) will be the ones passing their DNA on to future generations
D) are least likely to survive
  • 8. A variation in a population is caused by:
A) neither mutation or sexual reproduction
B) Both, mutations & sexual reproductions
C) just sexual reproduction
D) just mutations
  • 9. Who is the English, naturalist who studied plants and animals and created an evolution theory?
A) Albert Newton
B) Gregory Mendel
C) Isaac Newton
D) Charles Darwin
  • 10. A process by which favorable traits tend to increase in frequency over time is called:
A) changes over time
B) evolution
C) variation
D) natural selection
  • 11. What is an inherited trait that increases an organism’s chance of surviving and reproducing?
A) variation
B) evolution
C) adaptation
D) natural selection
  • 12. Which is NOT a cause for extinction?
A) rapid environmental changes
B) introduction of a predator
C) variation in population
D) failure to adapt to the environment
  • 13. What causes the environment to change and adapt to hurt the species?
A) evolution
B) extinction
C) natural selection
D) isolation
  • 14. What is the number one goal of an organism?
A) be famous
B) survive and reproduce
C) make money
D) help others
  • 15. How does a lizard's camouflage help it to survive?
A) sharpens hearing
B) a clearer view of the environment
C) creates better balance
D) makes it harder to see by predators
  • 16. According to Darwin, why did the Galapagos finches have different beaks?
A) genetic mutation
B) feeding habits and diet
C) difference in flight patterns
D) differences in defences
  • 17. A method of breeding that only allows organisms with desired traits to produce the next generation is called what?
A) hybridization
B) selective breeding
C) selective engineering
D) genetic engineering
  • 18. Which reason do humans give for not using the selective breeding method?
A) to make animals better hunters
B) to increase a plants productivity
C) to increase animal productivity
D) to clone plants, animals, and animals
  • 19. What was the first animal to be selectively bred?
A) cats
B) dogs
C) cows
D) birds
  • 20. Out of the following, which trait would be the least useful for a cow?
A) to have muscles
B) to produce lots of milk
C) to be mean and fierce
D) to survive in hot conditions
  • 21. Two animals can be bred together as long as:
A) they look similar
B) they belong to the same species
C) they belong to the same genus
D) they belong to the same kingdom
  • 22. Which is the correct order for the process of selective breeding?
A) select offspring /mate /select parents
B) mate /select parents /choose offspring /mate offspring
C) select parents/ mate/ choose offspring /mate offspring
  • 23. An animal's color or pattern that helps it blend into its surroundings to avoid being seen is called:
A) camouflage
B) adaptation
C) hiding
D) mimicking
  • 24. When food is scarce in an environment, animals TRAVEL to different habitats. This is called what?
A) physical change
B) migrating
C) hibernation
D) sharing
  • 25. Species than cannot adapt to changes in their environment must _____ or die.
A) move
B) sleep
C) complain
D) hibernate
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