I believe it is Dopamine, I could be wrong tho.
It’s the last one Tubular
Both females and males have 46 chromosomes. When they have children, 23 of each parents chromosomes go together to make 46 chromosomes so the child can live, without all chromosomes their can be health issues.
Answer:
The ultimate goal of development is progressive transformation of economy and social system and the satisfaction of human needs and aspirations.
Puberty, and there are many websites and books that offer information so you know what to expect.