Ecosystems and Biospheres

12345678910111213141516171819202122232425262728
Across
  1. 4. Organisms that are hunted and consumed by predators in an ecosystem
  2. 5. The ultimate source of energy for most ecosystems
  3. 8. The zone on Earth where life exists, including the atmosphere
  4. 10. A community of living organisms and their environment
  5. 13. The Earth's outermost layer that contains continents and oceans
  6. 18. The first national park known for its diverse ecosystem
  7. 19. Referring to the levels of a food chain or web
  8. 21. An organism that hunts and eats other organisms
  9. 22. The food ___ is a sequence of organisms in an ecosystem, showing who eats whom
  10. 24. The study of interactions between organisms and their environment
  11. 25. A top predator in many North American ecosystems
  12. 26. The layer of the Earth beneath the crust and above the core
  13. 27. The rigid outer layer of the Earth, including the crust
  14. 28. A food ___ complex network of interconnected food chains in an ecosystem
Down
  1. 1. An animal that primarily feeds on other animals
  2. 2. An organism with a disproportionately large impact on its ecosystem
  3. 3. A series of events that affect one another in an ecosystem
  4. 6. The capacity to do work or cause change in an ecosystem
  5. 7. An animal that primarily feeds on plants
  6. 9. A secondary ____ eats herbivores
  7. 11. A scientist who studies the relationships in ecosystems
  8. 12. The specific environment where an organism lives
  9. 14. A primary ____ eats producers
  10. 15. The process of wearing away the Earth's surface by wind, water, or ice
  11. 16. The variety of life within an ecosystem or on Earth
  12. 17. The way different organisms or elements in an ecosystem affect each other
  13. 20. Organisms that break down dead matter into nutrients for the ecosystem
  14. 21. Organisms that create their own food through photosynthesis
  15. 23. The total amount of water on Earth, including oceans and freshwater bodies