___ have two X chromosomes, while
have one X chromosome and one Y chromosome.

1. Females

2. Males

Explanation:

Females inherit one X chromosome from their mother, and one X chromosome from their father. Males inherit one X chromosome from their mother and one Y chromosome from their father.

Hope this helps =)

The skeletal system maintains homeostasis by acting as a reservoir for minerals, helping us walk upright and protecting our organs.