Biology

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Across
  1. 2. An animal that feeds on plants
  2. 3. An animal that naturally preys on others
  3. 4. interaction between organisms or species, in which the fitness of one is lowered by the presence of another
  4. 6. Each of several hierarchical levels in an ecosystem
  5. 7. An organism that generally obtains food by feeding on other organisms or organic matter
  6. 8. an organism that lives on or in an organism of another species, known as the host, from the body of which it obtains nutriment.
  7. 9. A web of animals contributing to each other as food
Down
  1. 1. An organism that feeds on and breaks down dead plant or animal matter
  2. 4. An association between two organisms in which one benefits and the other derives neither benefit nor harm.
  3. 5. A chain of animals where the food travels through
  4. 8. An organism capable of producing their own food