Chapter 6: Changes Over Time

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  • 1/15 Questions

    Related species have similar body structures because they inherited the same genes from a common ancestor

    • True
    • False
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About This Quiz

One of the ways in which we use to see into the past is finds of fossils and get a glimpse of what it was like before the inventions that we have today. In chapter six we get to take a trip down in history and see the changes over time. The quiz below is designed to see just how much you know all the best and keep revising the topics!

Chapter 6: Changes Over Time - Quiz

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  • 2. 

    Any difference between individuals of the same species is called variation.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Variation refers to any difference that exists between individuals of the same species. This can include differences in physical traits, behavior, or genetic makeup. Therefore, the statement that any difference between individuals of the same species is called variation is true.

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  • 3. 

    An adaptation is any trait that helps an organism

    • Survive and reproduce

    • Fight better

    • Overproduce variations

    • Become larger and stronger

    Correct Answer
    A. Survive and reproduce
    Explanation
    An adaptation refers to any trait that enables an organism to survive and reproduce successfully. This means that the organism has developed characteristics or behaviors that allow it to better cope with its environment, find food, avoid predators, and successfully reproduce. These adaptations increase the organism's chances of survival and passing on its genes to the next generation, ultimately ensuring the continuation of its species.

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  • 4. 

    The millions of fossils that scientists have collected make up the fossil record

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because the fossil record is composed of the millions of fossils that scientists have collected over time. These fossils provide evidence of past life forms and help scientists understand the history and evolution of different species on Earth. The fossil record is an important tool for studying paleontology and reconstructing the ancient world.

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  • 5. 

    Only traits that are learned can be acted upon natural selection

    • True

    • False

    Correct Answer
    A. False
    Explanation
    This statement is false because natural selection acts on inherited traits rather than learned traits. Natural selection is the process by which certain traits that increase an organism's fitness are more likely to be passed on to future generations. These traits are determined by genetic variations and are not acquired through learning. Therefore, only inherited traits can be acted upon by natural selection, not learned traits.

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  • 6. 

    Which of the following is considered a scientific theory?

    • Radioactive dating

    • Fossil record

    • Evolution

    • Overproduction

    Correct Answer
    A. Evolution
    Explanation
    Evolution is considered a scientific theory because it is a well-supported explanation for the diversity of life on Earth. It is based on extensive evidence from various scientific disciplines, including genetics, paleontology, and comparative anatomy. The theory of evolution explains how species change over time through the process of natural selection, and it has been extensively tested and confirmed through numerous scientific studies and observations. It is widely accepted by the scientific community and is considered one of the foundational principles of modern biology.

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  • 7. 

    A species is a group of similar organisms that can

    • Successfully compete against other species

    • Overproduce helpful traits

    • Adapt to new environmental conditions

    • Mate and produce fertile offspring

    Correct Answer
    A. Mate and produce fertile offspring
    Explanation
    A species is a group of similar organisms that can mate and produce fertile offspring. This is because mating and producing fertile offspring is a fundamental characteristic of a species. It ensures that the genetic information is passed on to the next generation, allowing the species to continue to exist and evolve. Without the ability to mate and produce fertile offspring, the organisms would not be able to contribute to the gene pool of the species and would not be considered part of the same species.

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  • 8. 

    A diagram that shows how scientists think different groups of organisms are related is called

    • Branching tree

    • Evolution tree

    • Tree of animal life

    • Darwin's tree

    Correct Answer
    A. Branching tree
    Explanation
    A branching tree is a diagram that represents the relationships between different groups of organisms according to scientists' understanding. It visually shows how different species or groups of organisms have evolved and branched out from a common ancestor over time. This diagram helps scientists analyze and study the evolutionary history and relationships between different organisms. It is a useful tool for understanding the diversity and interconnectedness of life on Earth.

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  • 9. 

    The technique that allows scientists to determine the actual age of a fossil is called

    • Radioactive dating

    • Gradualism

    • Natural selection

    • Relative dating

    Correct Answer
    A. Radioactive dating
    Explanation
    Radioactive dating is the technique used by scientists to determine the actual age of a fossil. This method relies on the principle that certain elements in rocks and minerals decay at a known rate over time. By measuring the amount of decayed isotopes in a fossil, scientists can calculate its age. This technique is crucial in understanding the geological time scale and the evolution of life on Earth. Gradualism refers to the idea that changes in species occur gradually over long periods of time. Natural selection is the process by which organisms with advantageous traits are more likely to survive and reproduce. Relative dating is a method of determining the age of fossils based on their position in rock layers.

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  • 10. 

    The largest span of time in the Geologic Time Scale is the Mesozoic Era

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The largest span of time in the Geologic Time Scale is not the Mesozoic Era. The correct answer is False. The largest span of time in the Geologic Time Scale is actually the Precambrian Eon, which encompasses about 88% of Earth's history. The Mesozoic Era is a subdivision within the Phanerozoic Eon, which is a smaller portion of the overall geologic time scale.

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  • 11. 

    Is the effect caused by limited food and other resources

    • Overproduction

    • Competition

    • Variation

    • Fossil

    Correct Answer
    A. Competition
    Explanation
    Competition refers to the struggle between individuals or species for limited resources such as food, water, and territory. In a situation where there is limited food and other resources, individuals or species will compete with each other to obtain these resources in order to survive and reproduce. This competition can lead to various adaptations and changes in the population over time. Therefore, competition is a plausible explanation for the effect caused by limited food and other resources.

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  • 12. 

    On the Beagle, Charles Darwin's job was to

    • Study the formation of the Galapagos Island

    • Learn about the living things he saw on the voyage

    • Make a map of the world

    • Find evidence of extinct species

    Correct Answer
    A. Learn about the living things he saw on the voyage
    Explanation
    On the Beagle, Charles Darwin's main task was to learn about the living things he encountered during the voyage. This is evident from his detailed observations and collections of various species, which later contributed to the development of his theory of evolution. Darwin's studies on the Galapagos Islands and other locations provided him with crucial insights into the diversity and adaptation of organisms, ultimately leading to his groundbreaking work on the origin of species. Therefore, his primary focus on learning about the living things he saw on the voyage is a valid explanation for the correct answer.

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  • 13. 

    A fossil made of hardened minerals in the shape of the original organism or one of its parts is called a(n)

    • Mold

    • Variation

    • Cast

    • Amber

    Correct Answer
    A. Cast
    Explanation
    A cast is a fossil made of hardened minerals that replicates the shape of the original organism or one of its parts. It is formed when minerals fill the mold left behind by the organism, creating a replica of its external or internal features. This process preserves the original shape and structure of the organism, providing valuable information about its appearance and anatomy. Casts are important in paleontology as they allow scientists to study and understand extinct organisms and their characteristics.

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  • 14. 

    Which of the following is a type of evidence used by scientists to determine evolutionary relationships?

    • The location of island in an ocean

    • The order of aminoacids in a protein

    • The way in which fossils formed

    • The food an organism eats

    Correct Answer
    A. The order of aminoacids in a protein
    Explanation
    Scientists use the order of amino acids in a protein as evidence to determine evolutionary relationships. This is because the sequence of amino acids in a protein is determined by the DNA sequence of the genes that code for that protein. Over time, changes in the DNA sequence can result in changes in the amino acid sequence of the protein. By comparing the amino acid sequences of proteins in different organisms, scientists can infer how closely related they are and how recently they shared a common ancestor. This method is known as molecular phylogenetics and has become a powerful tool in understanding evolutionary relationships.

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  • 15. 

    According to this theory, species evolve during short periods of rapid change

    • Evolution

    • Punctuated equilibria

    • Natural selection

    • Pangea

    Correct Answer
    A. Punctuated equilibria
    Explanation
    Punctuated equilibria is the correct answer because it refers to a theory of evolution where species experience long periods of stability or equilibrium, interrupted by short bursts of rapid change. This theory suggests that evolution occurs in sporadic events rather than through gradual, continuous changes. It contrasts with the idea of gradualism, where evolution happens steadily over time. Punctuated equilibria helps explain why the fossil record often shows long periods of little change followed by sudden bursts of new species.

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  • Mar 21, 2023
    Quiz Edited by
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  • Nov 06, 2010
    Quiz Created by
    Imycajigas

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