Mitosis occurs in gametes. Hope this answer helps.
Microtubules in Mitosis. Microtubules play a role in the migration of chromosomes to opposite ends of a mitosing cell during the anaphase.
YES. All planktons are microscopic. Plankton refers to microscopic sea organisms. We also have;
Phytoplankton which are microscopic plants
Zooplankton which are microscopic animals.
Hope that helped. Have a nice day