Prepare for the MCAT Psychological, Social, and Biological Foundations of Behavior Test. Study with flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Polyandry refers specifically to a marital arrangement in which one woman has multiple husbands. This form of relationship is relatively rare compared to polygyny, where one man has multiple wives. Polyandry typically occurs in certain cultural contexts and can serve various social, economic, or demographic purposes, such as limiting population growth or managing land and resources among families.

In contrast, the other options describe different types of marital arrangements that do not accurately define polyandry. For example, the first option describes polygyny, the second option is more general and could encompass various relationship structures, and the fourth option does not reflect any recognized marital structure but rather suggests a single person's status. Understanding the specific definitions of terms related to marriage and relationships is crucial in differentiating between these concepts.