Unit 4 Vocab: Ecology

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Across
  1. 3. A stable, mature community that undergoes little or no change in species over time.
  2. 4. A relationship where one organism benefits at the expense of another organism.
  3. 6. The variety of life in a particular ecosystem or on Earth as a whole.
  4. 8. A type of ecological interaction where both species benefit from the relationship.
  5. 10. The maximum population size that an environment can sustainably support.
  6. 12. The first species to colonize previously disrupted or damaged ecosystems, beginning a chain of ecological succession.
  7. 14. An interaction where one organism (the predator) kills and eats another organism (the prey).
  8. 15. Non-native species that spread rapidly in new environments, often harming native species and ecosystems.
  9. 17. The interaction between organisms or species that vie for the same resources in an ecosystem, such as food or space.
  10. 18. The process by which the concentration of toxic substances increases in organisms at each successive trophic level of a food chain.
  11. 19. A factor that limits population size based on the population density, such as disease or competition.
  12. 21. A relationship between two species where one benefits, and the other is neither helped nor harmed.
Down
  1. 1. Succession that occurs in an area that previously had soil and organisms but was disturbed, such as after a fire.
  2. 2. The process by which a large, continuous habitat is broken into smaller, isolated sections.
  3. 5. A factor that affects population size regardless of population density, like natural disasters.
  4. 7. The movement of individuals out of a population, decreasing its size.
  5. 9. The process by which ecosystems change and develop over time, often after a disturbance.
  6. 11. The movement of individuals into a population, increasing its size.
  7. 13. The ability of an ecosystem to recover after it has been disturbed or damaged.
  8. 16. Ecological succession that begins in an area where no soil or organisms previously existed, such as after a volcanic eruption.
  9. 20. The role or function of an organism or species in an ecosystem, including its habitat, diet, and interactions with other organisms.