Earth and Life Science
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Questions and Answers

What are the characteristics of life?

  • Nutrition, reproduction, excretion
  • Growth, movement, respiration
  • Sensitivity, all of the above (correct)
  • None of the above

    • When did life evolve from a common ancestor?

  • 2.5 billion years ago
  • 3.5 billion years ago (correct)
  • 4.5 billion years ago
  • 5.5 billion years ago

    • What is a key process in the evolution of multicellular organisms?

  • Binary fission
  • Fragmentation
  • Cell specialization and differentiation (correct)
  • Parthenogenesis

    • Which of the following is a characteristic of eukaryotic cells?

    <p>Membrane-enclosed organelles</p> Signup and view all the answers

    What is the function of the immune system?

    <p>Defend against pathogens</p> Signup and view all the answers

    Who proposed the theory of evolution by natural selection?

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

    According to Thomas Malthus, what leads to competition in populations?

    <p>Both A and B</p> Signup and view all the answers

    What is gene flow?

    <p>Movement of genes from one population to another</p> Signup and view all the answers

    What does the bottleneck effect refer to?

    <p>Decrease in population due to environmental factors</p> Signup and view all the answers

    Who is known as the Father of Taxonomy?

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

    What is the function of the digestive system?

    <p>Process foods and absorb nutrients</p> Signup and view all the answers

    How do systems collaborate in the body?

    <p>By influencing each other's functions</p> Signup and view all the answers

    What is the role of the circulatory system?

    <p>Transport oxygen, nutrients, and remove wastes</p> Signup and view all the answers

    What connects the respiratory and circulatory systems?

    <p>Blood vessels</p> Signup and view all the answers

    What does the endocrine system use for communication?

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

    What is a mechanism of evolutionary change?

    <p>Genetic drift</p> Signup and view all the answers

    What does genetic drift refer to?

    <p>Change in the gene pool due to chance</p> Signup and view all the answers

    What are examples of abiotic factors in ecology?

    <p>Temperature, water, pH</p> Signup and view all the answers

    What is carrying capacity in ecology?

    <p>Maximum number of individuals an ecosystem can support</p> Signup and view all the answers

    How do organisms continuously interact with their environment?

    <p>As part of an ecosystem</p> Signup and view all the answers

    Who proposed the theory of use and disuse?

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

    What is the process that builds up or breaks down materials in metabolism?

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

    What does the bottleneck effect result from?

    <p>Environmental factors</p> Signup and view all the answers

    What is the primary function of chloroplasts in plants?

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

    Who proposed the theory of inheritance of acquired traits?

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

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