Biology%20107%20General%20Biology

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Biology 107General Biology

• Pat Akrabawi
• Michael Cullen
• Brian Ernsting
• Joyce Stamm

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Introduction to General Biology

• As a result of this lecture and the assigned
  reading, you should understand the following
• Properties of Life
• a. order
• b. evolutionary adaptation
• c. response to the environment
• d. regulation/homeostasis
• e. energy utilization
• f. growth and development
• g. reproduction

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Some Properties of Life
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Examples of Order
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Examples of Reproduction
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Introduction to General Biology

• Themes in the Study of Life
• 1. Cells form the simplest, independent units of
  organization of living organisms. Cells arise
  from other cells.
• Biological information is carried in DNA.
• 3. Life is associated with emergent properties.
  These properties are the consequence of the
  hierarchies of structure.
• 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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The Hierarchy of Biological Organization
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Biologists Study Life on Many Different Scales of
Size and Time
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Introduction to General Biology

• Living organisms regulate their systems.
• Organisms do not live in isolation, they
  interact with their environment (including other
  organisms) to survive.
• All organisms transform energy to do work.
• 8. Living things are unified and diverse.

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Introduction to General Biology

• Evolution is the central theme of biology. It
  explains both the unity and diversity of life.
• Science involves repeated observations and
  testable hypotheses.
• Science and technology are human endeavors.

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Review of Unifying Themes in Biology
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Idealized Version of the Scientific Method
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Applying Hypothetico-deductive Reasoning to a
Campground Problem
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Controlled experiments to test the hypothesis
that selective predation affects the evolution of
guppy populations