How might the effectiveness of nectar change if it had a bitter taste?

Floral nectar is offered by plants to animals as a reward for pollination. While nectar is typically a clear liquid containing sugar and trace amounts of amino acids, colored nectar has evolved in several plant families. Here we explore the functional significance of the phenolic compounds that impart a dark brown color to the nectar of the South African succulent shrub Aloe vryheidensis. Flowers of this aloe are visited.

Explanation:

Hope this helps

answer: "circumcision is a common procedure in which the skin covering the tip of the penis is surgically removed."