Final answer:
In cultures with strong sexual ethic tied to marriage, the dominant form of marriage is typically monogamous in American and European cultures. However, in small-scale farming cultures where children contribute to food production, the marriage of one man to multiple women is more prevalent.
Step-by-step explanation:
In cultures with strong sexual ethic tied to marriage, the dominant form of marriage is typically monogamous, consisting of a union between two people. This is commonly seen in American and European cultures. In contrast, in small-scale farming cultures where children contribute to food production, the marriage of one man to multiple women is more prevalent.