Unveiling the World of Unicellular Organisms
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Questions and Answers

Which category do most prokaryotes fall into?

  • Protozoa
  • Unicellular fungi
  • Unicellular organisms (correct)
  • Multicellular organisms

Which category do most eukaryotes fall into?

  • Multicellular organisms (correct)
  • Bacteria
  • Archaea
  • Unicellular organisms

What is the oldest form of life?

  • Prokaryotic organisms
  • Unicellular organisms (correct)
  • Multicellular organisms
  • Eukaryotic organisms

Do prokaryotes live in colonies?

<p>Yes, but they do not have specialized cells with differing functions. (B)</p> Signup and view all the answers

Do multicellular organisms have a unicellular life-cycle stage?

<p>Yes, but only some multicellular organisms have a unicellular life-cycle stage. (D)</p> Signup and view all the answers

Which branch of science has contributed the most to understanding Earth's past?

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

When did Earth form?

<p>4.54 billion years ago (C)</p> Signup and view all the answers

What created the primordial atmosphere and ocean on Early Earth?

<p>Volcanic outgassing (A)</p> Signup and view all the answers

What was the early atmosphere on Earth like?

<p>Rich in carbon dioxide (B)</p> Signup and view all the answers

What caused much of the Earth to be molten during its earliest stage?

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

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