Biology: Themes and Unity
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Questions and Answers

What is the primary focus of biology?

  • Studying the diversity of life forms
  • Analyzing the chemical composition of planets
  • Investigating the Earth's geological history
  • Exploring the molecular biology of cells (correct)

What is the role of genes in organisms?

  • Encoding hereditary information (correct)
  • Facilitating evolution through genetic mutation
  • Regulating internal environments
  • Producing energy for cellular activities

Which unifying theme in biology explains the unity and diversity of life?

  • Genetic engineering
  • Energy processing
  • Evolution (correct)
  • Cellular respiration

How do biologists typically approach their research?

<p>By employing the scientific method (C)</p> Signup and view all the answers

What is the approximate age of life on Earth as mentioned in the text?

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

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