Across
- 1. example of unicellular organism
- 5. one organism benefits from the relationship, while the other organism (the host) is harmed
- 7. model where population grows without limit
- 8. stage of the carbon cycle when carbon dioxide is released into the atmosphere from burning fossil fuels
- 10. where competition is occurring within the same species
- 11. organism hunting/killing another for food
- 14. our planet and all biotic and abiotic factors on it
- 15. the levels of nourishment in a food chain
- 17. occurs in an area that was previously occupied by living organisms, but the community was destroyed by a disturbance; examples include fires, farming, hurricane
- 18. shows a single flow of energy through organisms
- 20. multiple ecosystems that share similar characteristics
- 24. type of reproduction that results in identical offspring
- 27. both organisms involved benefit
- 28. organisms that feed on producers
- 29. where competition is occurring between different species
- 32. individual member of a species or population
- 33. type of resource that can only be replaced over extended periods of time
- 36. study of relationships between 2 organisms or between an organism and its environment
- 37. the role that an organism plays in its environment
- 41. movement of a particular form of matter through the living and nonliving parts of an ecosystem
- 44. when two or more organisms are fighting for the same limited resource
- 45. organisms composed of two or more cells
- 46. study of describing, naming, and classifying organisms
- 52. stage of the carbon cycle when carbon dioxide is released into atmosphere as waste by consumers
- 53. consumers that get energy from eating living or once living organisms
- 55. a mature and stable community of plants and animals
- 56. mass cutting down of trees and forests; decreases transpiration
Down
- 1. living factors in an ecosystem like food, mates, or competition for resources
- 2. one organism is benefited while the other is unaffected
- 3. stage of the nitrogen cycle when bacteria convert nitrogen into a usable form for plants to absorb through their roots
- 4. any interaction that involves a close, physical, long term relationship between two species
- 6. shows multiple food chains at once, and how they interconnect
- 9. limiting factors that operate more strongly on large dense populations and are usually caused by biotic components like competition or predation
- 12. type of resource that can be replenished
- 13. stage of the carbon cycle where plants use take in sunlight and carbon dioxide and use it to make glucose
- 15. water vapor released from leaves
- 16. species the first organisms to grow in a new environment
- 19. limiting factors that regulate population growth regardless of size or density like weather or natural disasters
- 21. model where population grows quickly at first and then levels off
- 22. as energy flows from organism to organism, it is used for metabolism and/or converted to heat so the next organism on the chain only receives 10 PERCENT of the energy obtained in the previous level
- 23. same size as community level but adds abiotic factors
- 25. organisms that feed on secondary consumers
- 26. where an organism lives
- 30. maximum population that a given environment can support
- 31. stage of the nitrogen cycle when bacteria or lightning in soil or water convert nitrogen from a gas into an organic compound
- 34. multiple individuals of same species living together
- 35. species that are not native to an area and tend to thrive because they have no natural predators
- 38. organisms that feed on primary consumers
- 39. organisms composed of only one cell
- 40. nonliving factors in an ecosystem like space, temperature, sunlight, or rainfall
- 42. occurs when a community forms in an area that has not been previously occupied; examples include exposed rock, lava, melted ice, eroded sand
- 43. multiple populations of different species living together
- 47. variety of organisms considered at all levels, from populations to ecosystems
- 48. water seeping into ground to become groundwater
- 49. liquid water changing to a gas; increases with heat/temperature
- 50. producers that use sunlight to make their own energy
- 51. type of reproduction that results in lots of genetic variation
- 54. organism killed/consumed as food