Biology 107 General Biology

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Biology 107General Biology

• Pat Akrabawi
• Michael Cullen
• Brian Ernsting

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Introduction to General Biology

• Themes in the Study of Life As a result of this
  lecture and the assigned reading, you should
  understand the following
• 1. Life is associated with emergent properties.
  These properties are the consequence of the
  hierarchies of structure.
• 2. Cells form the simplest, independent units of
  organization of living organisms. Cells arise
  from other cells.
• 3. Biological information is carried in DNA.
• 4. Structure and function are correlated at all
  levels of biological organization.

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Hierarchy of Biological Organization

• Atoms Molecules
  (organelles) CELLS
• Organisms Organ Systems
  Organs Tissues
• Population Community
  Ecosystem Biosphere

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Figure 1.2 The hierarchy of biological
organization
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Figure 1.1 Biologists study life on many
different scales of size and time
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Introduction to General Biology

• 5., and 6. Living organisms interact with the
  environment
• order
• energy utilization
• response to the environment
• reproduction
• growth and development
• homeostasis
• evolutionary adaptation
• Living things are unified and diverse.

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Figure 1.3 Some properties of life
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Figure 1.3ax Order
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Figure 1.3bx Reproduction
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Introduction to General Biology

• Evolution is the central theme of biology
• Science involves repeated observations and
  testable hypotheses.
• Science and technology are human endeavors.

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Table 1.1 Review of Ten Unifying Themes in
Biology
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Table 1.1 Review of Ten Unifying Themes in
Biology (continued)
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Figure 1.19 Idealized version of the scientific
method
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Figure 1.20 Applying hypothetico-deductive
reasoning to a campground problem
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Figure 1.21 Controlled experiments to test the
hypothesis that selective predation affects the
evolution of guppy populations
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