Ecology Quiz 1

Edit Answers
12345678910111213141516171819202122232425262728
Across
  1. 1. The total mass (weight) of organisms in a given area.
  2. 6. Arrows in a food chain/web show the direction of the flow of _______.
  3. 9. These organisms eat dead and decaying plant and animal matter and recycle the nutrients back to the plants.
  4. 12. Another name for a consumer - an organism that obtains energy from another living organism, usually by eating them.
  5. 13. An animal that kills and eats other animals (meat).
  6. 16. The top of an energy pyramid or food chain contains these consumers.
  7. 22. All the organisms that live in a area and their physical environment.
  8. 23. The process of converting solar energy into chemical energy in the form of carbohydrates/sugar.
  9. 24. A single unicellular or multicellular living thing. Also called an individual.
  10. 25. A group of ecosystems that share similar climates and typical organisms.
  11. 26. _______ factors are parts of an ecosystem that are living or used to be living
  12. 27. The percentage of energy that is passed from one trophic level to the next.
  13. 28. The study of the interactions among organisms with each other and with the environment.
Down
  1. 2. Another name for a producer - an organism that can capture energy from a nonliving source, like sunlight.
  2. 3. The entire planet with all its organisms and physical environments.
  3. 4. A group of individuals that are the same species and live in the same area.
  4. 5. An animal that only eats plants or algae.
  5. 7. The third level of an energy pyramid or food chain contains these consumers.
  6. 8. Each step in a food chain or food web is called a ________ level.
  7. 10. The bottom of an energy pyramid contains these organisms, such as plants.
  8. 11. The second level of an energy pyramid or food chain contains these consumers.
  9. 14. Most (90%) of the energy in an ecosystem is lost as this.
  10. 15. A species that other species in an ecosystem largely depend on, such that if it were removed, the ecosystem would change drastically.
  11. 17. ________ factors are parts of an ecosystem that have NEVER been living
  12. 18. An animal that eats both plants and other animals (meat).
  13. 19. Two or more different populations that live together in the same area.
  14. 20. A group of similar organisms that can mate and produce fertile offspring in the wild.
  15. 21. A group of food chains in an ecosystem put together forms this.