Final answer:
Antonie van Leeuwenhoek is well known for being the first to observe microbes and for creating powerful simple microscopes. However, he is not credited with observing human cells; his observations were focused on single-celled organisms and bacteria.
Step-by-step explanation:
Antonie van Leeuwenhoek was a Dutch tradesman and scientist who is famous for several notable achievements in the field of microscopy but not all. The exception to the achievements credited to Antonie van Leeuwenhoek according to the provided information should be identified with careful consideration of his historical contributions versus other contemporaries such as Robert Hooke or Galileo Galilei.
Notable Achievements of Antonie van Leeuwenhoek:
The first person to observe microbes, including bacteria, which he referred to as "animalcules" and "wee beasties."
Created simple microscopes that were more powerful with better resolution compared to the compound microscopes of his era.
He discovered bacteria and protozoa.
Common Mistake:
Discovered human cells and bacteria - This is the exception as he did not observe human cells; his observations were primarily of single-celled organisms and bacteria.