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20 Cards in this Set

  • Front
  • Back
What are the 4 terrestrial biomes in Canada?
Tundra, Taiga, Decidous forest, and grassland
What are the 3 main zones in a lake?
littoral, limnetic, profundal
What is the carrying capacity in an ecosystem?
The maxium number of individuals of a species that can be supported by an ecosystem.
What is species diversity?
The number of diffrent species in a given area?
What is genetic divisity?
The amount of variations in inherited traits between individuals of the same species.
What are the 3 Forestry practices?
Slash and Burn, Clear cutting, and Selective cutting.
What is oligotrophic in a lake?
Low nutrient levels.
What is eutrophic in a lake?
High nurtient levels.
What does BOD stand for?
Biological oxygen demand.
What is watershed?
land that drains towards a body of water.
What are fossils?
The remains, traces, or other direct evidence of past life.
What are the two kinds of fossil dating?
Relitive and absolute.
What is extintion?
The death of all members of a species in the wild.
What is Biogeography?
the study of distrbution of plants and animals throughout the world.
What is Homologous structure?
something similar in stucture derived through decents from a common ancestors.
What is Analogous structure?
similar in fuction but diffrent in anatomy.
What is Embryology?
The theory of recapitulation.
What is darwin basic theory?
Surival of the fittest.
What is the theory of gradualism?
The idea that speciation.
What is the theory of punctuated equilibrium?
The idea that species evovle rapidly, followed by a period of little or no change.