Zoology

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Anonymous
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6805
Filename:
Zoology
Updated:
2010-02-13 13:11:06
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Exam 1
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  1. What is evolution?
    A change in species over time.
  2. How many named animals;organisms?
    • 1 million named Animals
    • 1.5 million named Organisms
  3. What is meant by Teleological?
    Goal oriented; selecting for certain charecteristics
  4. What are the two mechanisms of change?
    • Aritificial Selection
    • Natural Selection
  5. Which is Teleological? Artificial or Natural Selection?
    Artificial Selection
  6. In Natural Selection the ____ is the selectiong agent for specific ______.
    • Environment
    • Charecteristics
  7. A _____ is something that has been tested so many times, few scientists will test is valadity.
    Theory
  8. True or False:
    Evolution and Natural Selection are the same things.
    FALSE
  9. _____ do not evolve, only populations.
    Individuals
  10. A _____ ______ is an actual change in the charecterisitic of genes
    Genetic Change
  11. A genetic change is a change in _____ frequency.
    Allele
  12. A(n) ____ is different types of the same gene.
    Allele
  13. What are the 3 mechanisms that change Allele frequency?
    • Mutation
    • Migration
    • Genetic Drift
  14. ______ is the change in a structure of genes.
    Mutation
  15. Mutations can be harmful, neutral, or beneficial. Which one is the most frequent?
    Harmful
  16. True or False:
    Mutation is always random.
    True
  17. _____ is the gene flow of a population.
    Migration
  18. What is the difference between a change in Allele frequency and a new allele arising?
    Change in allele only changes the individual where source of a new allele gies species variation.
  19. ________ are random chnages in allele frequency due to chance processes.
    Genetic Drift
  20. _____ and ______ mishaps are not related to gene type.
    Death and Reproductive Mishaps
  21. What are the two special cases of genetic drift?
    • Population Bottlenecks
    • Founder Effect

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