Because the gene for the O blood type is common within in the gene pool.
It doesn't matter whether the gene is dominant or recessive, it matters on how on that ^
Answer:
It plays a vital role in the carbon cycle because it releases carbon dioxide into the atmosphere.
Explanation:
Science.
As the pollen tube penetrates the ovule, it releases two sperm cells. ... As in gymnosperms, the ovule becomes a seed, encasing the embryo and endosperm in a seed coat. But unlike gymnosperms, in angiosperms the ovary containing the ovules develops into a fruit after fertilization