Risk-on risk-off is an investment setting in which price behavior responds to and is driven by changes in investor risk tolerance. Risk-on risk-off refers to changes in investment activity in response to global economic patterns.
Meiosis is necessary in order for sexual reproduction to occur. It ensures that when the gametes (eg. sperm and egg) combine, the new organism has the correct number of chromosomes.
Meiosis is the cell division process that allows for the formation of gametes for sexual reproduction, with the random separation of each chromosome of the individual homologous pairs. These gametes can fertilize gametes from other individuals, promoting the combination of homologous chromosomes from different individuals.