Answer:
Yes, if the 13year old male has a matured sperm which can fertilize the ovum of the 21year old woman. But the possibility is very small.
Explanation:
21-year-old woman can potentially conceive a child with a male of any age within her fertile period, regardless of his age. However, the likelihood of successful conception decreases with the male's age due to factors such as reduced sperm count and quality. While it is possible for an older man to father a child, there is an increased risk of certain genetic abnormalities in the offspring as the male's age advances.