History of Life on Earth
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Questions and Answers

When did life on earth begin?

  • More than 3 billion years ago (correct)
  • More than 4 billion years ago
  • Less than 2 billion years ago
  • More than 2 billion years ago

    • What is the basic component of all living things?

  • Organs
  • Organ systems
  • Tissues
  • Cells (correct)

    • What is the characteristic of unicellular organisms?

  • They consist of multiple cells
  • They have specialized functions
  • They carry out all life processes (correct)
  • They are found only in water

    • What is the characteristic of multicellular organisms?

    <p>They are composed of many cells</p> Signup and view all the answers

    What was the first event in the timeline of evolution of life on earth?

    <p>Evolution of organic molecules</p> Signup and view all the answers

    When did the oceans form on earth?

    <p>About 3.8 billion years ago</p> Signup and view all the answers

    What is the process called when an organism grows in size and number of cells?

    <p>Intussusception</p> Signup and view all the answers

    What is the basic unit of life in an organism?

    <p>Cell</p> Signup and view all the answers

    What is the ability of a living organism to live in harmony with other organisms in the environment?

    <p>Adjustment, Integration, and Coordination</p> Signup and view all the answers

    What is the living matter in a cell composed of?

    <p>Cell membrane, cytoplasm, and nucleus</p> Signup and view all the answers

    Who is the evolutionist who talked about the process of evolution to explain how life developed?

    <p>Charles Darwin</p> Signup and view all the answers

    What is the process of an organism producing new individuals closely resembling them?

    <p>Reproduction</p> Signup and view all the answers

    What type of molecules were present in the Earth's atmosphere during the Precambrian period?

    <p>Both inorganic chemical compounds and organic molecules</p> Signup and view all the answers

    What is the energy source that led to the formation of organic molecules from inorganic chemical compounds?

    <p>Ultraviolet light, electricity, or heat from below the earth's surface</p> Signup and view all the answers

    What type of organisms are believed to have primitive lipid membranes?

    <p>Prokaryotes</p> Signup and view all the answers

    What is the primary source of energy and molecules for prokaryotic heterotrophic cells?

    <p>Chemicals from outside sources</p> Signup and view all the answers

    What was the 'primordial soup' composed of around 3.5-3.8 billion years ago?

    <p>Organic molecules such as amino acids and nucleotide bases</p> Signup and view all the answers

    What was the advantage of cells that could produce their own organic molecules from simple sources?

    <p>They were more likely to survive</p> Signup and view all the answers

    What is the main idea behind the Special Creation Theory?

    <p>Life is created by a Supreme Being</p> Signup and view all the answers

    What was the believe about the origin of life in ancient times?

    <p>Life originated from non-living matter</p> Signup and view all the answers

    What is the phrase that means 'the development of an organism expresses all the intermediate forms of its ancestors throughout evolution'?

    <p>Ontogeny recapitulates phylogeny</p> Signup and view all the answers

    What is the main idea behind the Biogenetic Theory?

    <p>Living organisms developed from other living organisms</p> Signup and view all the answers

    What is the theory that most biologists believe in, regarding the origin of life?

    <p>The Abiogenetic Synthesis Theory</p> Signup and view all the answers

    What was the result of the experiments made by different scientists regarding the Spontaneous Generation Theory?

    <p>The theory was proven to be incorrect</p> Signup and view all the answers

    What is an adaptation?

    <p>An inherited trait that helps an organism survive and reproduce</p> Signup and view all the answers

    What is the mechanism by which evolution occurs?

    <p>Natural selection</p> Signup and view all the answers

    What is the term evolution specifically referring to in biology?

    <p>A generation-to-generation change in the proportion of different inherited genes</p> Signup and view all the answers

    What is an example of evolution in action?

    <p>Beetles changing color over time</p> Signup and view all the answers

    How is modern biology changing human's everyday life?

    <p>By improving the treatment of certain mental illnesses</p> Signup and view all the answers

    What is a consequence of environmental issues such as water and air pollution?

    <p>People are becoming more aware of their relationship to the biosphere</p> Signup and view all the answers

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