small animal vocab

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Across
  1. 3. organism that lives in or on an organism of another species
  2. 5. animal animal kept primarily for company
  3. 6. inherent inclination of a living organism towards a particular complex behavior
  4. 9. a chemical substance produced and released into the environment by an animal
  5. 11. substance that provides nutrients for growth
  6. 12. regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissue into action
Down
  1. 1. animal that eats plants and animals
  2. 2. portion of possible metabolic pathways operates at high rates
  3. 4. thing or event that evokes a specific reaction in an organ or tissue
  4. 7. animal that feeds on flesh
  5. 8. study of heredity and the variation of inherited characteristics
  6. 10. animal that feeds on plants