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Across
  1. 4. euglena is a ________ organisms
  2. 5. the cytoplasm is not dense in-----
  3. 8. powerhouse of a cell
  4. 9. surrounding the cytoplasm is the thin covering called the ________
Down
  1. 1. brain of the cell
  2. 2. the process by which the new cells are formed the cytoplasm is not dense in ______
  3. 3. cell that have well defined nucleus
  4. 6. there are _____ pairs of chromosomes in every human body
  5. 7. the thread like structure present it the nucleus
  6. 9. building blocks of life