Ch 6 Life Science: Changes Over Time Test

25 Questions | Attempts: 39
Share
Quiz Flashcard
SettingsSettings
Please wait...
  • 1/25 Questions

    A species is a group of similar organisms that...

    • Can mate with each other and produce fertile offspring.
    • Can live together on an island.
    • Can migrate to an island from the mainland.
    • All have exactly the same traits.
Please wait...
About This Quiz

Ch 6 Life Science: Changes Over Time Test

Ch 6 Life Science: Changes Over Time Test - Quiz

Quiz Preview

  • 2. 

    If two organisms look very similar during their early stages of development, this is evidence that the organisms...

    • Are not related.

    • Evolved from different ancestors.

    • Have exactly the same DNA.

    • Evolved from a common ancestor.

    Correct Answer
    A. Evolved from a common ancestor.
  • 3. 

    A branching tree is...

    • A diagram showing how scientists think different groups of organisms are related.

    • A species of tree that is not closely related to other tree species.

    • A drawing that shows where different animals live in a tree.

    • A homologous structure that many plants have.

    Correct Answer
    A. A diagram showing how scientists think different groups of organisms are related.
  • 4. 

    The gradual change in a species over time is called...

    • Mutation

    • Evolution

    • Migration

    • Variation

    Correct Answer
    A. Evolution
  • 5. 

    Which term refers to a species that no longer has any living members?

    • Molded

    • Fossilized.

    • Extinct.

    • Petrified.

    Correct Answer
    A. Extinct.
  • 6. 

    Differences between members of the same species are called...

    • Predators

    • Selections

    • Traits

    • Variations

    Correct Answer
    A. Variations
  • 7. 

    What did Darwin observe about finches in the Galapagos Islands?

    • Their feathers were adapted to match their environment.

    • Their beaks were adaptations related to the foods the finches ate.

    • They had identical phenotypes in all locations.

    • They had identical genotypes in all locations.

    Correct Answer
    A. Their beaks were adaptations related to the foods the finches ate.
  • 8. 

    Which term refers to the process by which individuals that are better adapted to their environment are more likely to survive and reproduce?

    • Natural selection

    • Overproduction

    • Competition

    • Variation

    Correct Answer
    A. Natural selection
  • 9. 

    Darwin concluded that organisms on the Galapagos Islands..

    • Had changed over time.

    • Had remained the same.

    • Were the result of selective breeding.

    • Had no variations.

    Correct Answer
    A. Had changed over time.
  • 10. 

    Which theory proposes that species evolve during short periods of rapid change?

    • Gradualism

    • Evolution

    • Absolute dating

    • Punctuated equilibria

    Correct Answer
    A. Punctuated equilibria
  • 11. 

    What are fossils?

    • Molds and casts of organisms that live today.

    • Drawings of ancient animals and other organisms.

    • Footprints or burrows of small animals that live today.

    • The preserved remains or traces of organisms that lived in the past.

    Correct Answer
    A. The preserved remains or traces of organisms that lived in the past.
  • 12. 

    Which term refers to similar structures that related species have inherited from a common ancestor?

    • DNA sequences

    • Developmental organisms

    • Homologous structures

    • Punctuated equilibria

    Correct Answer
    A. Homologous structures
  • 13. 

    Which term refers to a species creating more offspring than can possibly survive?

    • Natural selection

    • Overproduction

    • Evolution

    • Variation

    Correct Answer
    A. Overproduction
  • 14. 

    What theory proposes that evolution occurs steadily in tiny changes over long periods of time?

    • Gradualism

    • Relative dating

    • Natural selection

    • Punctuated equilibria

    Correct Answer
    A. Gradualism
  • 15. 

    A trait that helps an organism survive and reproduce is called a(n)...

    • Mutation

    • Selection

    • Adaptation

    • Variation

    Correct Answer
    A. Adaptation
  • 16. 

    Why do scientists think related species have similar body structures and development patterns?

    • The species inherited many of the same genes from each other.

    • The species inherited many of the same proteins from each other.

    • The species inherited all of the same genes from a common ancestor.

    • The species inherited many of the same genes from a common ancestor.

    Correct Answer
    A. The species inherited many of the same genes from a common ancestor.
  • 17. 

    Scientists combine evidence from fossils, body structures, early development, DNA and protein structures to ...

    • Determine what bones an animal has in its forelimbs.

    • Determine the evolutionary relationships among species.

    • Decide which fossils are older than others.

    • Determine whether an organism will have gills during its early development.

    Correct Answer
    A. Determine the evolutionary relationships among species.
  • 18. 

    Which of these is one of the main ways that new species forms?

    • Cross-breeding occurs within the species.

    • A group is separated from the rest of the species.

    • Competition occurs between members of the species.

    • Mutations occur in the alleles of members of the species.

    Correct Answer
    A. A group is separated from the rest of the species.
  • 19. 

    How does natural selection lead to evolution?

    • Stronger offspring kill weaker members of the species.

    • Helpful variations accumulate among surviving members of the species.

    • Overproduction provides food fro stronger members of the species.

    • Environmental changes favor weaker members of the species.

    Correct Answer
    A. Helpful variations accumulate among surviving members of the species.
  • 20. 

    Which of the following is most likely to become preserved as a fossil?

    • A leaf

    • A worm

    • A jellyfish

    • A clam shell

    Correct Answer
    A. A clam shell
  • 21. 

    Which evidence suggests that the ancestors of whales once walked on land?

    • Scientists have found fossils of whale like creatures that had legs.

    • Whales perform walking motions as they swim.

    • Whales have similar DNA to elephants.

    • Whales breathe through lungs.

    Correct Answer
    A. Scientists have found fossils of whale like creatures that had legs.
  • 22. 

    What theory agrees with fossil records that show no intermediate forms for long periods of time?

    • Gradualism

    • Natural selection

    • Evolution

    • Punctuated equilibria

    Correct Answer
    A. Punctuated equilibria
  • 23. 

    What is the role of genes in evolution?

    • Only genes can be acted on by natural selection.

    • Parents with recessive genes die from overproduction.

    • The genes of most surviving parents have only dominant alleles.

    • Only traits that are controlled by genes can be acted on my natural selection.

    Correct Answer
    A. Only traits that are controlled by genes can be acted on my natural selection.
  • 24. 

    What did Darwin infer from his observations of organisms in South America and the Galapagos Islands?

    • The organisms on the Galapagos Islands were virtually identical to mainland organisms.

    • A small number of different plant and animal species had come to the mainland from the Galapagos Islands.

    • The organisms on the Galapagos Islands were completely unrelated to mainland organisms.

    • A small number of different plant and animal species had come to the Galapagos Islands from the mainland.

    Correct Answer
    A. A small number of different plant and animal species had come to the Galapagos Islands from the mainland.
  • 25. 

    How long is Precambrian Time in Geologic Time Scale?

    • 4 million years

    • 4.6 million years

    • 4 billion years

    • 4.6 billion years

    Correct Answer
    A. 4 billion years

Quiz Review Timeline (Updated): Mar 20, 2022 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 20, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 06, 2015
    Quiz Created by
    Colleen Zeiss
Back to Top Back to top
Advertisement