biology

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Across
  1. 2. whats respiration without oxygen ?
  2. 4. what carries the blood away from the heart
  3. 5. what small fragments get invloved in blood clotting ?
  4. 6. what does the salivary gland produce
  5. 8. whats a strong concentration of water called?
Down
  1. 1. what pigment is found in red blood cells
  2. 3. what cell is only one cell thick
  3. 7. whats respiration with oxygen ?
  4. 8. whats a weak concentration of water called?