Ch3 The Biosphere

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Across
  1. 4. A layer of permanently frozen soil found in polar regions and some tundra areas.
  2. 6. A group of similar organisms that can breed and produce fertile offspring.
  3. 9. The part of Earth where life exists, including land, water, and the atmosphere.
  4. 12. Tiny organisms that float in water and are a crucial food source for many marine animals.
  5. 13. All of the water on Earth, including oceans, rivers, lakes, and glaciers.
  6. 14. Organic material in soil formed by the decomposition of leaves and other plant matter.
  7. 15. The upper layer of a body of water that receives enough sunlight for photosynthesis to occur.
  8. 17. A coastal area where freshwater from rivers meets and mixes with saltwater from the ocean.
  9. 18. A large geographic area with distinct plant and animal communities adapted to its climate.
  10. 19. The deeper layer of a body of water where sunlight does not reach.
  11. 20. factor Any living component of an ecosystem, such as plants, animals, or bacteria.
  12. 21. The day-to-day conditions of the atmosphere, including temperature, precipitation, and wind.
  13. 22. The dense, upper layer of leaves in a forest, especially in a rainforest, where most of the sunlight is absorbed.
  14. 23. The solid parts of Earth, including rocks, mountains, and the Earth's crust.
  15. 24. All the different populations (species) that live together in a specific area.
Down
  1. 1. The layer of gases surrounding Earth that supports life by providing oxygen.
  2. 2. The average weather conditions in a region over a long period of time.
  3. 3. A group of individuals of the same species living in the same area.
  4. 5. A water-saturated area that supports diverse plant and animal life.
  5. 7. Any non-living component of an ecosystem, such as sunlight, water, or temperature.
  6. 8. The layer of vegetation beneath the forest canopy, consisting of smaller trees and plants.
  7. 10. A community of organisms and their physical environment interacting together.
  8. 11. The trapping of heat by certain gases in the Earth's atmosphere.
  9. 16. The study of how living things interact with each other and their environment.