Biology Vocab

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Across
  1. 1. the total mass of organisms at a trophic level
  2. 3. the final step in decomposition, they feed on any remaining organic matter
  3. 4. a combination of both herbivores and carnivores
  4. 7. species type of species that first colonizes a disturbed area
  5. 8. symbiotic relationship in which one species benefits while the other species is harmed
  6. 9. species that consumes another in a predator-prey relationship
  7. 10. the role of a species in its specific ecosystem
  8. 12. species that is harmed in a parasitic relationship
  9. 13. change in the numbers and types of species that live in a community that occurs in an area that has never before been colonized
  10. 14. relationship between organisms of the same species that strive for the same resources in the same place
  11. 17. consume the soft tissues of dead animals
  12. 18. species that plays an especially important role in its community so that major changes in its numbers affect the populations of many other species in the community
  13. 19. changes through time in the numbers and types of species that make up the community of an ecosystem
  14. 21. change in the numbers and types of species that live in a community that occurs in an area that was previously colonized but has been disturbed
  15. 22. type of symbiotic relationship in which both species benefit
  16. 23. symbiotic relationship in which one species benefits while the other species is not affected
  17. 25. competition relationship between organisms of different species that strive for the same resources in the same place
  18. 29. organisms that use energy from sunlight to make food by photosynthesis, includes plants, algae and certain bacteria
  19. 32. a major branch of biology that is the study of how living things interact with each other and their environment
  20. 34. species that is consumed by another in a predator-prey relationship
  21. 35. represents multiple pathways
  22. 36. the dead leaves, animal fleeces, and other organic debris
Down
  1. 1. living aspect of the environment
  2. 2. break down the wastes and other remains of organisms
  3. 5. use energy from chemical compounds to make food by chemosynthesis
  4. 6. evolution of different adaptations in competing species, which allows them to live in the same area without competing
  5. 11. When two species compete for the same food and other resources in the environment
  6. 15. relationship in which members of one species consume members of another species
  7. 16. the feeding positions in a food chain or food web
  8. 20. final stable stage of ecological succession that may be reached in an undisturbed community
  9. 24. organisms that consume detritus
  10. 26. species that benefits in a parasitic relationship
  11. 27. can sums animals, ex: lions, polar bears, and Hawks
  12. 28. a single pathway through which energy and matter flow through a ecosystem
  13. 30. factors of an environment that aren't living
  14. 31. organisms consume producers such as plant or algae
  15. 33. the physical environment to which a species and adapts and also lived