Stems 19

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Across
  1. 6. skin, outer layer
  2. 7. isolation, seclusion
  3. 8. crowd, array
  4. 10. reject, fire
  5. 11. projectile, rocket
  6. 12. bone cell, bone-forming cell
  7. 15. bone infection, bone inflammation
  8. 17. environmental science, biology of ecosystems
  9. 18. bone therapy, holistic medicine
Down
  1. 1. infusion, transfer
  2. 2. early embryo, embryonic cell cluster
  3. 3. instill, inject
  4. 4. early stage embryo, developing zygote
  5. 5. demeanor, outlook
  6. 6. outbreak, contagion
  7. 9. focal point, center
  8. 13. : waste, trash
  9. 14. task, assignment
  10. 16. habitat, ecological community