Many mammals have skins and mucous membranes that are sensitive to phenolic secretions of plants like poison oak (Rhus). These secondary compounds are primarily adaptations that ________.

Question

Quizplus · Accepted Answer

The phenolic secretions of plants like poison oak are secondary compounds that inhibit herbivory. They are chemical defenses that have evolved to deter animals from eating the plant, thus increasing the likelihood of the plant's survival and reproduction. Many mammals have sensitive skin and mucous membranes that experience a negative reaction to these compounds, indicating that they are effective deterrents against herbivores. The other options (A, B, and C) are not directly related to phenolic secretions, and do not explain why mammals are sensitive to them.

Many Mammals Have Skins and Mucous Membranes That Are Sensitive