Science 10 Reviewer

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Across
  1. 2. Gland that regulates growth
  2. 6. System that uses electrical signals
  3. 7. Unit of heredity
  4. 9. Organism that makes food
  5. 10. Hormone triggering stress response
  6. 11. Chemical messengers of the endocrine system
  7. 12. Energy source of ecosystems
  8. 14. -plant and animal eater
  9. 16. Variety of life forms
Down
  1. 1. Both species are benefited
  2. 3. Male reproductive hormone
  3. 4. Different forms of a gene
  4. 5. Consumer that eats meat
  5. 8. Hormone controlling ovulation
  6. 11. Brain control center for hormones
  7. 13. Genetic makeup of an organism
  8. 15. Trait passed from parents