Respuesta :
Long
ago, the microscope is not yet invented so people did not know about cells,
bacteria and other minute organism. With this, we can conclude that many
questions go unanswered and unasked because of the lack of technology. Moreover,
valuable invention has opened the mind of the people to become curious on what
is around and how life works in this world.
Answer:
putting the blood next to the water using a thin wallputting the blood next to the water using a thin wallputting the blood next to the water using a thin wallputting the blood next to the water using a thin wallputting the blood next to the water using a thin wallputting the blood next to the water using a thin wall