TOPIC 19: Relationships of Organisms With One Another & With The Environment - KEYWORDS 1

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Across
  1. 3. / An animal that gets its energy by eating other animals.
  2. 6. /The organisms that are eaten by the predators are called the ____ .
  3. 9. / A food web is a network of ________ food chain.
  4. 11. / An animal that gets its energy by eating plants.
  5. 13. / An organism that gets its energy from dead or waste organic material.
  6. 15. / The producers are always in the ____ trophic level.
  7. 18. / An organism that makes its own organic nutrients, usually using energy from sunlight, through photosynthesis.
  8. 20. /During photosynthesis the light energy is converted into ______ .
Down
  1. 1. / A trophic level is the ______ of an organism in a food chain, food web, pyramid of numbers or ecological pyramid.
  2. 2. / The herbivores are always in the second trophic level and they are also known as _____ consumer.
  3. 4. / Only 10% of the energy is available to be passed to the next trophic level in the food chain because energy flows from one trophic level to the next is ______ .
  4. 5. / A carnivore that kills and eats other animals.
  5. 7. /The principal source of energy in an ecosystem.
  6. 8. / The chemical energy in plants is passed on to all consumers in the ecosystem through _____ .
  7. 10. / A food chain shows the transfer of energy from one organism to the next, beginning with a _____ .
  8. 12. / The _____ the food chains, the more energy will be lost and therefore is insufficient to support the higher trophic level.
  9. 14. /The flow of energy through the ecosystem _____-way flow as the energy is not returned to the sun or the producer (plants).
  10. 15. / Tertiary consumers which are animals that eat the secondary consumers so they are in the ____ trophic level.
  11. 16. / The carnivores prey on herbivores so they are also known as the ___ consumer.
  12. 17. / Carnivore that eats the dead remains of animals killed by predators.
  13. 19. / As energy flows through the ecosystem, some of it is lost to the environment as ____.