Only a doctor can determine that, a hermaphrodite has both sex organs of both male and female.
No because he doesn't have a vagina.
It's common if problems persist see doctor.
Yes its normal for a 12 year old. you are growing at different rates bodily so your testicles will grow later.
No, it is not gay. But it may be something you regret later when someone discovers it.
knee caps they are later developed at the ages 2-6 but are sometimes born with them
About ten you start to develop some start earlier some later
Castration must hurt. The physical removal of the testicles, even if put under or done with a band will be painful later on.
You can be born with them or they can develop later in life such as after puberty.
Yes they can-however, nut allergies are extremely rare to develop later on in life.
An embryo makes blood because it begins to develop into a fetus and later into a new infant. An egg can not become an embryo without the DNA that the sperm donates.
It may develop later. Perhaps you have none.
gastrula
gastrula