Across
- 4. Organism that eats dead and decaying matter.
- 6. Resource _____ is the dividing up of resources between different species in an ecosystem.
- 8. Population _____ refers to the amount of individuals in a certain area.
- 9. _____ species are species that enter an ecosystem from somewhere else.
- 10. A relationship in which one organism consumes another.
- 12. Process by which chemicals are turned into sugars (ecosystems without light)
- 17. A relationship in which one species benefits and the other is unaffected.
- 18. The area in which living things find all resources they need in order to survive.
- 20. The study of characteristics of human populations.
- 23. A relationship in which two species benefit one another.
- 24. Process by which plants make their own food.
- 26. The role an organism plays in its ecosystem.
- 30. The process by which more favorable traits become more common in a population.
- 32. A group of organisms that can interbreed, producing fertile offspring.
- 35. _____ factors control how many organisms an area can support.
- 36. Individuals of the same species living in the same place at the same time.
- 38. _____ species are species at risk of becoming endangered.
- 42. The elimination of all members of a particular species from the entire Earth.
- 44. Any relationship in which two organisms affect one another.
- 46. A biodiversity ______ is an area with very high levels of biodiversity.
- 47. The study of organisms and their interactions with their environments.
- 48. Illegal hunting of an animal.
Down
- 1. Communities and the nonliving elements they interact with.
- 2. Organism that only eats plants.
- 3. _____ potential is the maximum ability of a species to reproduce.
- 4. Population _____ refers to the way individuals are spread out in an area.
- 5. _____ species are species at risk of extinction.
- 7. A sequence of DNA that controls a specific trait.
- 11. Organisms that break down dead organisms into their basic components.
- 12. The maximum number of organisms an ecosystem can support.
- 13. The process by which plant and animal life returns to an area after a catastrophe.
- 14. Habitat _____ is the separation of a habitat into several distinct “islands”
- 15. The diversity of life in an area.
- 16. _____ species are species that have large consequences when removed from an ecosystem.
- 17. _____ breeding involves re-growing a population and then releasing them into the wild.
- 19. Organism that only eats animals.
- 21. Organisms capable of making their own food.
- 22. When individuals move into a population.
- 25. The process of one species splitting into two or more species.
- 27. The elimination of all members of a species from a specific area on Earth.
- 28. The total number of offspring a female has during her life.
- 29. Evolution in response to changes in another organism.
- 31. When individuals leave a population.
- 33. The collection of all life on Earth and all the things they interact with.
- 34. The seasonal cycle of entering and exiting a population.
- 36. A relationship in which one species feeds off of another without killing it.
- 37. Changing behavior in order to survive.
- 39. Genetic _____ is a change in distribution of a certain trait caused by random chance.
- 40. Describes a species found only in one area in the world.
- 41. The measure of how successfully organisms reproduce in a given environment.
- 43. A collection of several species living in the same place at the same time.
- 45. Similar ecosystems spread over large areas of Earth.