Environmental Science: Unit 1 Vocabulary

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Across
  1. 2. - complete disappearance of a species from Earth
  2. 4. - organism that is killed by an organism of another species and serves as its source of food
  3. 5. - animal that can use both plants and other animals as food sources
  4. 6. CYCLE - cycle that collects, purifies, and distributes Earth's fixed supply of water
  5. 8. - relationship in which one organism lives in or on another organism and benefits at the host's expense
  6. 10. CYCLE - movement of nitrogen in different chemical forms from the environment to organisms and then back to the environment
  7. 11. DIVERSITY - variety of species present in a specific ecosystem and their abundance within that ecosystem
  8. 13. - organism that makes the food it needs from compounds in soil, carbon dioxide, air and water by using the sun's energy
  9. 14. - interaction between organisms of different species in which one type of organism benefits and the other type is neither helped nor harmed
  10. 16. WEB - complex network of interconnected food chains
  11. 18. - the variety of life on Earth
  12. 21. - consumers that get their nutrients by breaking down nonliving organic matter and dead animals
  13. 24. CYCLING - continual movement of the elements and compounds that make up nutrients through air, water, soil, rock, and living organisms within ecosystems
  14. 26. CHAIN - sequence of organisms in which each organism is a source of nutrients or energy for the next level of organisms
  15. 27. - includes all of the gaseous, liquid, or solid water on or near Earth's surface
  16. 28. CYCLE - movement of phosphorus through water, Earth's crust, and living organisms
  17. 29. - organism that eats mostly green plants or algae
  18. 30. SPECIES - species that migrate into an ecosystem or are deliberately or accidentally introduced into an ecosystem by humans
  19. 31. LEVEL - assigned feeding level of an organism depending on whether it makes or finds its food
  20. 32. SUCCESSION - succession in an area in which natural vegetation has been removed or destroyed but some soil or bottom sediment remains
Down
  1. 1. DIVERSITY - variety of processes that occur within ecosystems
  2. 3. - interaction in which a member of one species captures and feeds on all or part of a living organism of another species
  3. 7. - animal that feeds mostly on other animals
  4. 9. - type of species interaction in which two species behave in ways that benefit both by providing each with food, shelter, or some other resource
  5. 12. CYCLE - movement of carbon in different chemical forms from the environment to organisms and then back to the environment
  6. 15. - role that a species plays in an ecosystem, including everything that affects its survival and reproduction
  7. 17. - organism that cannot produce its own food and gets the energy it needs by feeding on the tissues of other organisms
  8. 19. SPECIES - species that preserves an ecosystem by controlling the population of prey animals which could otherwise consume enough plant matter to devastate the ecosystem
  9. 20. DIVERSITY - variety in the genetic makeup of individuals in a population
  10. 22. SUCCESSION - succession in an area without soil or bottom sediments
  11. 23. - consists of the parts of the atmosphere, hydrosphere, and geosphere where life can exist
  12. 25. - group of interbreeding individuals of the same species living together in the same place at the same time
  13. 27. - area that provides the abiotic and biotic factors a species needs to survive