The answer is A
Breeding of individuals that have genes for a single trait:
MONOHYBRID CROSS.
We call it a monodihybrid cross when we are considering a cross with only one trait or characteristic.
"mono" means one and "hybrid" means that each trait will have two different alleles (for gene A: A or a), one is dominant and the other is recessive.
Answer:
The back
Explanation:
It has the most complex major muscle structure in the entire body.
The brain and the spinal cord are the organs of the central nervous system.
I'm not positive this would be the best place to ask that, I would suggest consulting either a close family member or friend or maybe a therapist. Or if you know someone who is transgender, talk to them, they most likely have the most insight. <span />