[NorthMountain]

9th Grade Biology is the wrong class to be learning about gender. In 9th Grade Biology you might learn about sexes, of which there are two.

If you were studying Latin, or German, French, Spanish, or many other languages, you would have learned about genders, of which there are indeed three.

[Fiji Hill]

If you were studying Latin, or German, French, Spanish, or many other languages, you would have learned about genders, of which there are indeed three.

There are three genders and two sexes.

[Perseverando]

9th Grade Biology is the wrong class to be learning about gender. In 9th Grade Biology you might learn about sexes, of which there are two.

If you were studying Latin, or German, French, Spanish, or many other languages, you would have learned about genders, of which there are indeed three.

Whoops! My bad. You are correct. Caught me off guard with the comment on gender related to grammar.

Maybe that's where all the gender confusion began with trying to conjugate the correct tense of verb with the correct gender pronoun in French, Spanish, or some other foreign language class.

[Bonemaker]

“..you would have learned about genders, of which there are indeed three...”

Which in turn refers back to whether a subject is masculine, feminine or neuter.

[Verginius Rufus]

I learned about the three genders in 9th grade Latin.

Latin adjectives usually have three forms for masculine, feminine, and neuter, but sometimes the masculine and feminine are the same (like nobilis) and sometimes all three genders have the same form (like vetus). The Romance languages all seem to have reduced the three genders to two (in effect the masculine and neuter merged), unless one of the more obscure Romance languages kept three.