Microorganisms and Ecosystems Quiz
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Questions and Answers

What is the primary role of microorganisms in the ecosystem?

  • Causing changes in the ecosystem (correct)
  • Producing oxygen for other organisms
  • Serving as a food source for larger organisms
  • Preventing the decay of organic matter

How do microorganisms contribute to nutrient cycling in the ecosystem?

  • By preventing the breakdown of organic matter
  • By producing organic matter from inorganic nutrients
  • By converting organic matter into inorganic nutrients (correct)
  • By inhibiting the growth of other organisms

Which statement accurately describes the relationship between microorganisms and decomposition?

  • Microorganisms prevent the decay of organic matter
  • Microorganisms break down dead and decaying matter (correct)
  • Decomposers are not classified as microorganisms
  • Decomposition occurs independently of microorganisms

Micro organism are tiny living things such as ______.

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

Many decomposers are Micro organism. They break down dead and decay ______.

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

Micro organism can cause changes in ______.

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

Microorganisms play no role in nutrient cycling within an ecosystem.

<p>False (B)</p> Signup and view all the answers

All microorganisms are decomposers.

<p>False (B)</p> Signup and view all the answers

Microorganisms are visible to the naked eye.

<p>False (B)</p> Signup and view all the answers

Flashcards

Ecosystem Role

Microorganisms drive changes in the environment through decomposition and nutrient recycling.

Nutrient Cycling

Microorganisms transform organic materials into inorganic nutrients, making them available to plants and other organisms.

Decomposition

Microorganisms break down dead organisms and organic waste, releasing nutrients back into the ecosystem.

Microorganisms

Tiny living things such as bacteria, fungi, and viruses.

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Decomposers Action

Dead and decaying organic matter, breaking it down into simpler substances.

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Ecosystem Changes

Microorganisms can alter habitats by processes like decomposition or nutrient cycling.

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Microbes in Cycling?

False. Microorganisms play a vital role in nutrient cycling by decomposing organic matter.

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All Decomposers?

False. Some microorganisms are decomposers, but others have different roles, such as producers or pathogens.

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Visible Microbes?

False. Microorganisms are too small to be seen without a microscope.

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