Answer:
Leeunwenhoek
Step-by-step explanation:
Anton Von Leeunwenhoek was the first scientist to observe live cells and in greater details. He described spirogyra in the mid 15th century.
- His contribution to the scientist community opened up the world of micro-organisms.
- He produced several microscopes to observed the world of micro-organisms that we cannot see with our naked eyes.
- He also studied plants extensively.