Answer:
big pp BIG PP small pp :(
Yes the answer is genes.
Polygenic traits are determined by multiple gene received from each parent.
Age- younger people have smaller capacity
gender-males have larger capacity
muscle mass
aerobic fitness
diseases of the respitorary system
The A antibodies will produce A antibodies and B antibodies will produce B antibodies
I hope this help but the metalloids is gruop five if that what your asking if not i will answer the other question for you