Not All Sexes Look Like Male and Female
Many organisms make two different gametes, so we call them male and female. But some species break that pattern completely.Sexual Reproduction: More Than Two Sexes
When Gametes Look The Same
In isogamous species, the gametes are similar or even identical in form. In the green alga Chlamydomonas reinhardtii, they are called plus and minus instead of male and female.Sexual Reproduction: More Than Two Sexes
