Answer:
High amounts of fluoride
Explanation:
Teeth cleaning agents can contaminate one's blood with fluoride, something that it is only healthy to accumulate a small amount of.
XX shows female
XY shows male
answer will be E as it is present on both genes.
Self-pollination occurs when the pollen from anther is deposited on the stigma of the same flower. Because cross-pollination allows for more genetic diversity, plants have developed many ways to avoid self-pollination.
