Biology Basics Quiz

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Questions and Answers

What is a unifying theme in the field of biology?

  • Energy processing
  • Regulation of internal environments
  • The study of cells
  • Evolution (correct)

What is the role of genes in organisms?

  • Encoding hereditary information (correct)
  • Processing energy
  • Regulating internal environments
  • Determining cellular structure

What is the focus of biologists' study at multiple levels of organization?

  • Molecular biology of a cell
  • Anatomy and physiology of plants and animals
  • Evolution of populations
  • All of the above (correct)

What is the primary tool used by biologists to make observations and form conclusions?

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

Which organisms are classified as eukaryotic?

<p>Protists, fungi, plants, and animals (A)</p> Signup and view all the answers

Which metabolic pathway is the oldest and most common form of photosynthesis?

<p>C3 photosynthesis (B)</p> Signup and view all the answers

What is the name of the adaptation for photosynthesis in arid conditions?

<p>Crassulacean acid metabolism (CAM) (A)</p> Signup and view all the answers

What is the name of the British physician and scientist who first published about photosynthesis in 1779?

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

What reducing agents were probably used by the first photosynthetic organisms?

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

When did available evidence from geobiological studies indicate that life existed?

<p>&gt;2500 Ma (C)</p> Signup and view all the answers

What is the process by which light energy is used to assemble sugars from carbon dioxide and a hydrogen and electron source?

<p>Photosynthesis (C)</p> Signup and view all the answers

Which metabolic pathway for photosynthesis prefaces the Calvin cycle with reactions that incorporate CO2 into four-carbon compounds?

<p>C4 photosynthesis (A)</p> Signup and view all the answers

What is the name of the adaptation for photosynthesis in arid conditions?

<p>Crassulacean acid metabolism (CAM) (B)</p> Signup and view all the answers

What reducing agents were most likely used by the first photosynthetic organisms?

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

What evidence from geobiological studies indicates the existence of life 3500 Ma?

<p>Fossils of filamentous photosynthetic organisms dated at 3.4 billion years old (C)</p> Signup and view all the answers

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