Because we humans are made from zygote which is formed by a combination of two haploid gametes !!
When the sperm and ova meet there is a crossing over type phenomenon which decides what will be the phenotype !! so we somewhere distinct from both our parents !!
The articles of confederation
The developed a bomb, not just that, the Nazis wanted to take over more land and that meant they where a threat to America, the Soviets teamed up with the US to create a bomb and it turns out the Nazis weren't even going to bomb them
The Renaissance era in Western Europe was a period noted for artistry.
During that time art was growing, that was also the time period that Da Vinci was in.
I hope this helped a bit! Good luck!
D. China should be the answer.
