Big, sessile gametes that are rich in cytoplasm are eggs. Females have eggs.
Small, mobile gametes that are stripped of cytoplasm are sperm (or pollen). Males have sperm. 4/
The fact that some people are blind does not put the lie to the fact that we—and indeed, all Primates—are a particularly visually-dominant species. 6/
The more complex the system, the fuzzier the borders between categories are. 7/