Animals and Their Roles in the Ecosystem."

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Across
  1. 4. A natural environment for a species (7 letters).
  2. 6. A species at risk of extinction (10 letters).
  3. 7. An animal that eats only plants (9 letters).
Down
  1. 1. A tamed animal living with humans (11 letters).
  2. 2. Largest rodent in the world (8 letters).
  3. 3. Uruguay's national bird (6 letters).
  4. 5. An animal that eats both plants and meat (8 letters).