Biology: Unifying Themes Quiz

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Questions and Answers

What is one of the major unifying themes in biology?

  • Geological formations
  • Energy processing (correct)
  • Astronomical phenomena
  • Weather patterns

What is the study of life at the molecular level called?

  • Astrobiology
  • Paleobiology
  • Molecular biology (correct)
  • Geobiology

What do biologists use to make observations, pose questions, and form conclusions?

  • Astrology
  • Scientific method (correct)
  • Magic spells
  • Alchemy

How long ago did life on Earth emerge?

<p>More than 3.7 billion years ago (C)</p> Signup and view all the answers

What do all organisms have that process hereditary information encoded in genes?

<p>Cells (D)</p> Signup and view all the answers

Which scientist first observed microorganisms under the microscope?

<p>Anton van Leeuwenhoek (D)</p> Signup and view all the answers

In which century did the possible existence of unseen microbial life first get suspected?

<p>Sixth century BC (D)</p> Signup and view all the answers

Who debunked the theory of spontaneous generation by demonstrating that microorganisms caused food spoilage?

<p>Louis Pasteur (D)</p> Signup and view all the answers

Which domain of life contains only microorganisms?

<p>Archaea (D)</p> Signup and view all the answers

Where can microorganisms live, according to the text?

<p>Everywhere from the poles to the equator (A)</p> Signup and view all the answers

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