Ecosystem Review
Across
- 7. when a wall of water quickly sweeps over an area
- 9. when water slowly climbs over the edges of a river
- 11. when plants and animals compete for ___________, some will get them and some will not
- 13. indicates the position that the organism occupies in the food chain
- 15. the 1st trophic level; an organism that can make its own food
- 16. shows the amount of energy that moves from one trophic level to another in a food chain
- 17. the 2nd trophic level; a consumer that only eats plants
- 20. the maximum number of organisms that can survive in a particular ecosystem
- 22. these can affect the number of organisms an environment can support
- 23. changes in the environment are due to __________ ________
- 24. uses pictures or words and arrows to show the movement of energy through the tropic levels of organisms
- 25. all the individuals of a given species in an area at a certain time
- 26. when organisms move in from another environment
- 27. large areas of ground movement of rock, earth, or debris that flow on slopes due to gravity
- 29. one or more communities in an area which are classified as biotic or abiotic
- 31. an organism that eats both plants and animals
Down
- 1. the temperature and amount of rainfall in a particular environment
- 2. individual ecosystems grouped together according to the climate and vegetation of that environment and adaptations of organisms in that environment
- 3. factors that include the nonliving parts of the ecosystem
- 4. some of the effects of _________ include the ability of some seeds to open and germinate, an increase in air pollution, habitat destruction, or destroying homes and property
- 5. factors that include the living parts of the ecosystem
- 6. the role of an organism in its environment including the type of food it eats, how it obtains its food, and how it interacts with other organisms
- 8. the top trophic level; an organism that consumes other animals
- 10. describes the organisms found in interconnecting food chains using pictures or words and arrows
- 12. when part of the population leaves the environment
- 14. the number of organisms in the given amount of space
- 18. rate the number of births in a population during a certain amount of time
- 19. the place where an organism lives in order to obtain its food, water, shelter, and other things needed for survival
- 21. all the different populations in a specific area at a certain time
- 27. one way that wildfires start
- 28. rate the number of deaths in a population during a certain amount of time
- 30. an unusually high water stage in which water overflows its natural or artificial banks onto normally dry land