organisms and their environment

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Across
  1. 1. shows how many organisms are at each level of a food chain.
  2. 4. an animal that gets its energy by eating other animals.
  3. 7. organisms that produce their own food.
  4. 8. all of the populations of different species in an ecosystem.
  5. 9. a group of organisms of one species, living in the same area at the same time.
  6. 10. a network of interconnected food chains.
  7. 11. the position of an organism in a food chain.
  8. 12. shows the transfer of energy from one organism to the next.
  9. 13. a unit containing the community of organisms and their environment, interacting together.
Down
  1. 1. shows how much dry mass is in the organism at each level of a food chain.
  2. 2. bacteria and fungi that get their energy from feeding off dead and decay organisms.
  3. 3. an animal that eats both plants and animals.
  4. 5. an animal that gets its energy by eating plants.
  5. 6. organisms that must eat other plants and/or animals to get energy.