A. prevent cross-contamination.
When you first fall in love, you experience a rush of hormones to the brain — including oxytocin, the “love hormone,” the “pleasure hormone” dopamine, and sex hormones like estrogen and testosterone. ... This influx of hormones plays a major role in those intense feelings of fluttery excitement, attraction and euphoria.
I think the answer is sexual reproduction to carry out selective breeding.
"It is the process in which one molecule of glucose is broken in half, ... producing two molecules of pyruvic acid, a 3—carbon compound. HOW does the C811 get glycolysis going? It uses the energy of 2 molecules of ATP."
