I feel like it's strange for me to answer this question since I am 14 years old but...it's completely normal for a lot of semen to come out, but the more frequently you ejaculate, the less it is. If you feel like you are going to come too soon, then take a 30 second pause. Hope this helps!
I believe that 1 would be immune and 2 would be adaptive
I think D. Cardiovascular disease
I think they mean a cast that you wear when your brake your arm.
Adoption is legally transferring parental rights to a child from the biological parents to another set of parents.