science

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Across
  1. 4. a dinosaur in a museum
  2. 7. when you take to many antibiotics you start to gain _____
  3. 10. vegan like this kind of plant
  4. 11. how do you tell a string of DNA's gender?
  5. 13. ra_efa_ct_o_
  6. 14. the era we live in
  7. 17. used for bacterial infections
  8. 20. the top of a wave
  9. 21. the distance from the center of a wave to the crest
  10. 22. a long period of time with a brand and several other smaller periods of time
  11. 23. s___cti_n
  12. 26. the longest era befor earth
  13. 27. the era the dinosaurs lived in
  14. 28. the top of water
  15. 30. the longest era for earth
Down
  1. 1. a change in an entire species over millions of years
  2. 2. what is the name of this crossword?
  3. 3. a padlock or a c_mb__ati_n lock
  4. 5. same as before but with a tic on the end
  5. 6. a song sung by imagine dragons
  6. 8. another word for germ
  7. 9. what killed the dinosaurs?
  8. 12. a type of wave
  9. 15. wave
  10. 16. the amount of crests or troughs you see in a unit of time
  11. 18. a type of wave
  12. 19. the distance between two crests
  13. 24. packed together or compressed
  14. 25. the bottom of a wave
  15. 29. a change in a species over a short period of time