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College Communities, Populations, and Ecosystems Questions

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College Communities, Populations, and Ecosystems
Which of the following tend to increase the rate of diffusion?
  1. Highter temperatures
  2. obstruction
  3. greater concentration differ
  4. volecity
College Communities, Populations, and Ecosystems
What is the biggest use of water in the US?
  1. Industrial
  2. Irrigation
  3. Mining
  4. Domestic
College Communities, Populations, and Ecosystems
Which of the following is a good definition for ecology?
  1. The study of life
  2. Study of human interactions with matter and energy resources
  3. Study of embryo development
  4. Study of relationships between organisms and the environment
  5. Study of the classification or organisms
College Communities, Populations, and Ecosystems
All the organisms on the campus make up a                   .
  1. an ecosystem
  2. a community
  3. a population
  4. a taxonomic domain
College Communities, Populations, and Ecosystems
College Communities, Populations, and Ecosystems
College Communities, Populations, and Ecosystems
Which of these can be the result of variations among local populations in biotic interactions?
  1. political divergence
  2. phenotypic divergence
  3. adaptive radiation
  4. genotypic divergence
College Communities, Populations, and Ecosystems
A model of a freshwater stream ecosystem might be expected to contain which of the following elements?
  1. abiotic inputs
  2. carbon dioxide output
  3. a box labeled "predators"
  4. biotic inputs from the watershed
  5. none of these
  6. all of a through d
College Communities, Populations, and Ecosystems
College Communities, Populations, and Ecosystems
                   is the proportion of males to females in a population.
  1. Age Distribution
  2. Survivorship Curve
  3. Population Density
  4. Sex Ratio
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