Ecology Vocabulary Unit: 7

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Across
  1. 1. a major regional or global community of organism
  2. 3. only eat plants
  3. 8. includes all organisms
  4. 9. is a close ecological relation between 2 or more organisms of different species that live in direct contact with one another
  5. 11. a relationship between 2 organism is which one receives an ecological benefit from another
  6. 15. different (another name for consumer)
  7. 20. can be described as all of the biotic and abiotic factors in the area where an organism lives
  8. 22. dependent Limiting Factor are limiting factors that are affected by the # of individuals in a given area
  9. 24. the process by which an organism forms carbohydrates using chemicals rather than light
  10. 26. Species- a species that as an unusually large effect on its ecosystem
  11. 27. Growth occurs when a population size increases over time
  12. 29. Growth a population begins with a period of slow growth followed by brief period of exponential growth before leveling off at a stable size
  13. 31. Niche is composed of all of the physical, chemical, and biological factors that a species need to survive, stay healthy and reproduce
  14. 33. Level are levels of nourishment in a food chain
  15. 35. only eat animals
  16. 38. is the movement of individuals into a population from another population
  17. 40. are organisms that get their energy by eating other living or once living sources
  18. 41. Density is a measurement of the # of individuals living in a defined space
  19. 42. a consumer that primarily eats one specific organism or feeds on a very small # of organism
  20. 43. eat both plants and animals
Down
  1. 2. is the study of the interaction among living things .
  2. 4. is the movement of individual out of a population and into another population
  3. 5. is often defined as the largest group of organisms in which two individuals are capable of reproducing fertile offspring, typically using sexual reproduction.
  4. 6. is the process by which one another is through predation
  5. 7. is a relationship similar to predation in that one organism benefits while the other is harmed
  6. 10. is assortment or variety of living things in an ecosystem
  7. 12. occurs when 2 organisms fight for the same limited resources
  8. 13. is often defined as the largest group of organisms in which two individuals are capable of reproducing fertile offspring, typically using sexual reproduction.
  9. 14. Limiting Factor the aspects of the environment that limit populations growth regardless of the density of the population
  10. 16. Exclusion states that when two species are competing for the same source
  11. 17. the sequence of biotic changes that regenerate as damaged community or create a community in a previously uninhabited area
  12. 18. Web a model that shows the complex network of feeding relationships and the flow of energy within and sometimes beyond the ecosystem
  13. 19. are consumers that have a varying diet
  14. 20. Cycle (water cycle) water cycle is the circular pathway of water on earth from the atmosphere
  15. 21. Cycle is the movement of a particular chemical through the biological and geological or living and nonliving parts of an ecosystem
  16. 23. Fixation certain types of bacteria convert gaseous nitrogen into ammonia
  17. 25. is interspecies interaction in which both organisms benefit from each other
  18. 28. factors are living things
  19. 30. are detritivores that break down organic matter into simpler compound
  20. 32. are organisms that get their energy from nonliving resources meaning they like their own food
  21. 34. Capacity an environment is the maximum # of individuals of particular species that the environment can normally and consistently support
  22. 36. means nourishment (another name for producer)
  23. 37. a group of different species that live together in one area
  24. 39. factors are nonliving things