Survival of the fittest. The strongest offspring will survive to adulthood and reproduce - their offspring will have stronger genes than prior generations. The weaker offspring will not live to adulthood and not produce offspring, therefore the weaker traits will die out with each generation
I would say our rubbish and garbage. People’s litter will most of the time end up in the ocean, and hurt the innocent sea animals.
A. Males produce four functional sperm while females produce only one functional egg.
There are give elements that DNA is made of. They are,
oxygen, nitrogen, hydrogen, carbon, and phosphorus.
Hope this helped!~
Two, most have to have two but if it has more then it has multiple