Science Biology

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Across
  1. 6. a change that only affects ecosystems for a couple of years
  2. 8. different groups in the human body
  3. 9. mental and physical traits passed on from generation
  4. 10. the basic unit of life
  5. 11. a change that affects multiple generations
  6. 12. when one organism suffers and one benefits
  7. 13. groups of different cell types/organisms
  8. 14. when grasses form on rock forming ecosystems
  9. 15. traits are passed on from organism to organism
Down
  1. 1. an organisms traits changing depending on its environment
  2. 2. when one organism is unaffected and one benfits
  3. 3. the amount of different organisms in an ecosystem
  4. 4. when both organisms benefit working together
  5. 5. an environment where abiotic and biotic factors live
  6. 7. favorable traits are passed on