Answer:
1. gender identity is how you see/Invision yourself as
example: Sonia is biologically a male, but sees himself as a female
2. Transgender is a transitioning from your biological gender to a gender you wanna be.
example: I'm biologically a female but since I want to be a man, I will transition to a male. (surgery, etc.)
3. human sexuality is how a person express themselves sexually
example: a male is sexually feminine
4. Sexuality is the attraction and feelings to other people of different genders.
example: homosexuality is the attraction to people who are the same gender as yourself.
pansexuality is the attraction to every gender there is.
5. Gender is your biological sexuality or your biological reproductive system since birth.
example: a female is born with a vagina while a male is born with a penis. therefore, their reproductive organ is their biological gender.