Back to school vocabulary reminder

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Across
  1. 4. beating organ involved in distributing the blood through the vessels
  2. 5. they are organelles which synthesize proteins
  3. 6. organ involved in motion
  4. 8. an organ of the digestion system which receives the food from the oesophagus
  5. 10. structure allowing the bacteria to move
Down
  1. 1. they contain the genes
  2. 2. smallest living unit of an organism
  3. 3. organelle which contains the DNA of the cell
  4. 7. unicellular organisms playing an important role in human diseases and health
  5. 9. the fluid that flows through our veins and which contains nutrients and cells