Random changes in allele frequency in a population are usually called genetic drift. The reason why this is the answer is because it is a very specific word which is used to describe exactly that - random changes in allele frequency.
All the other cases; answers, here aren't correct and don't apply.
Gametogenesis produces human egg and sperm cells
<span>Base on the data in the graph, the event that would most likely happen if the paramecium were placed in distilled water is that "The contractions would increase." This is the result of a hypertonic solution. </span>The net movement of water in an aqueous solution is form the higher
water concentration to a lower water concentration. A
hypertonic solution has higher solute in the cell than the outside. The
movement is from the cell to the outside and so the cell will shrink.
