Try It! - Definition/Restatement

What is the definition of protozoa?

  1. one-celled animals and multi-celled organisms
  2. unicellular organisms
  3. it's unicellular animals and multicellular organisms.
  4. unicellular animals and multicellular organisms
  5. unicellular organisms
  6. unicellular organism
  7. unicellular animals
  8. unicellular organism
  9. unicellular animals
  10. one-celled molecule