Ecosystem Energy Flow Quiz

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Questions and Answers

Which of the following best describes the flow of energy in an ecosystem?

  • Energy flows from decomposers to consumers to producers
  • Energy flows from decomposers to producers to consumers
  • Energy flows from producers to consumers to decomposers (correct)
  • Energy flows from consumers to producers to decomposers

What is the role of decomposers in an ecosystem?

  • To consume other organisms for energy
  • To provide energy to producers through photosynthesis
  • To hunt and kill other organisms for food
  • To break down dead organisms and recycle nutrients back into the ecosystem (correct)

How does energy enter an ecosystem?

  • Through the consumption of other organisms
  • Through the process of photosynthesis
  • Through the sun's energy being converted into food by producers (correct)
  • Through the decomposition of dead organisms

Which of the following statements about genetics is true?

<p>Genes can be turned on or off by environmental factors. (B)</p>
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What is the difference between genotype and phenotype?

<p>Phenotype refers to physical traits, while genotype refers to genetic makeup. (A)</p>
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What is a dominant gene?

<p>A gene that is always expressed, regardless of whether it is inherited from one or both parents. (A)</p>
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Which of the following is true about genetics?

<p>Genetics can influence both physical and behavioral traits (B)</p>
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What is the role of DNA in genetics?

<p>DNA is the genetic material that carries information for traits (D)</p>
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What is the difference between dominant and recessive genes?

<p>Dominant genes are expressed when paired with a recessive gene, while recessive genes are only expressed when paired with another recessive gene (C)</p>
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Which of the following statements is not consistent with Darwin's theory of natural selection?

<p>All individuals in a population have the same traits (B)</p>
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Which of the following is a key component of Darwin's theory of natural selection?

<p>Differential survival and reproduction based on advantageous traits (A)</p>
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Which of the following is inconsistent with the process of natural selection?

<p>The equal survival and reproduction of all individuals (C)</p>
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