Biology

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Across
  1. 4. molecules that easily mix with water
  2. 7. equal sharing of electrons
  3. 8. unequal sharing of electrons
  4. 10. bond that doesn't share electrons
  5. 13. a type of transport that requires energy
  6. 14. maintain cell shape
Down
  1. 1. molecules that don't mix well with water
  2. 2. has one tail
  3. 3. responsible for cell recognition
  4. 5. restrict motion
  5. 6. a chemical example is soap
  6. 9. has two tails
  7. 11. surface protein
  8. 12. a type of transport that doesn't require energy