Biology 242: Lecture 1Spring 2001

Introduction to Zoology

  1. General characteristics of animals
    1. Multicellular, heterotrophic eukaryotes
    2. Store carbohydrates as glycogen
    3. Lack cell walls
    4. Nervous tissue and muscle tissue
    5. Reproduce sexually/diploid-dominant life cycle

  2. Methods of grouping animals
    1. According to the number of cells
    2. According to the level of organization
    3. According to the type of symmetry
      1. Asymmetry
      2. Spherical
      3. Radial
      4. Bilateral
    4. According to the type of body cavity
      1. Acoelomate
      2. Pseudocoelomate
      3. Eucoelomate
    5. According to the fate of the blastopore during gastrulation
      1. Protostomes
      2. Deuterostomes
    6. According to habitat
    7. Phylogenetically

  3. Classification
    1. Major divisions of classification
      Kingdom (Animalia)
      Phylum (Chordata)
      Class (Mammalia)
      Order (Primates)
      Family (Hominidae)
      Genus (Homo)
      Species (sapiens)
    2. Five-kingdoms/Eight domains
    3. Binomial nomenclature (Linnaeus)


"The best way to destroy an enemy...is to make him a friend."
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