Across
- 4. nonliving aspects of an ecosystem
- 7. a relationship where two organisms benefit from each other
- 8. limited area smaller than a biome, in which living and nonliving things interact
- 13. land that is frozen year round, has minimal vegetation and short summers.
- 15. organisms that break down nutrients
- 16. a group of organisms of the same species interacting in the same area
- 18. the number of species in an area
- 20. warm humid air, over 250cm of rain, and an abundance of life. Trees grow in layers
- 27. moderate amounts of precipitation. Cool, wet winters and warm, dry summers. Covers the least amount of Earths surface with plants with waxy leaves.
- 28. top layer of the aquatic biome
- 29. when both orgaisms live in the same habitat but don't directly affect each other
- 31. when animals interact with each other in their ecosystem it can either be helpful or harmful for them
- 32. dead, decaying organic matter from plants or animal waste
- 33. a smaller part of an ecosystem that an organism prefers
Down
- 1. gets less than 25cm of rain a year. Temperatures can change dramatically and most organisms survive by conserving water or being active at night.
- 2. large areas that the biosphere is divided up into which includes organisms that are suited to that environment
- 3. a model that demonstrates the flow of energy in a group of organisms by identifying each trophic level, the bottom being producers and top being carnivores
- 5. doesn't get enough rainfall to support trees but grasses grow in rippling fields here which support many herbivores
- 6. an organism that depends on a larger organism for survival exhibits this type of relationship
- 9. a relationship that occurs when one organism is injured while the other is unaffected
- 10. the study of interrelationships between organisms and their physical surroundings
- 11. ecological layering that occurs because their is a difference in light and rainfall due to elevation changes
- 12. a model representing the flow of energy in an ecosystem using arrows to point to the direction an organism would be be consumed by
- 14. also known as heterotrophs
- 17. the way an organism lives in its habitat or the impact or role they play in it
- 18. the realm of life on Earth, which extends into the atmosphere and Earth's crust
- 19. temperate zone that receives moderate rainfall with moderate temperatures. All four seasons.
- 21. a relationship where one organism benefits and the other organism is neither harmed nor helped
- 22. middle layer of the aquatic biome
- 23. when there is a limited supply of a resource that more than one organism needs in an ecosystem, organisms do this
- 24. also known as autotrophs
- 25. widely spaced trees with lots of grasses. Moderate to high temperatures year-round. Rainy season brings 100-150cm of rain.
- 26. living aspects of an ecosystem
- 27. two seasons occur here each year. Hemlock, firs, and redwoods block out most light and change the soil making it difficult for other plants to grow.
- 30. bottom layer of the aquatic biome