Answer:
No, not all organisms.
Step-by-step explanation:
Hi there,
As you may continue to learn in biology, not all organisms go through the process of mitosis/meiosis. Well known examples are prokaryotes, such as bacteria and archaea, ancient organisms that replicate via binary fission, budding, and/or fragmenting
Mitosis and Meiosis only occur in eukaryotes and unique to them.
thanks,