However, this does mean that students of different biological sex still cannot share a room together, without a locking door between them.

One's biological sex is directly tied to specific social roles and expectations.

Wouldn't things be a lot easier if we were all one biological sex?

These differences likely reflect a combination of both biological (sex) and social (gender) factors.

The influence of biological sex on communication values has received scholarly attention.

However, the townspeople, who now realize the biological sex of their new friends, begin to protect them.

The one that couldn't be satisfied now with purely biological sex.

Surely, feminism has nothing to do with biological sex.

We use the word "man" (one man, two or more men) to talk about biological sex.

These parents may be able to choose the biological sex of their baby, but there's no sure way to pick the gender.