Multiple choice Which of the following floral characteristics does not facilitate cross -pollination? Male Sterility Heterostyly Dioecism Bud Pollination Reveal answer Fill a bubble to check yourself D Correct answer Explanation Anthers and stigma of the bisexual flowers of some plants mature before the opening of the buds to ensure self-pollination, (e.g.,) Wheat, Rice, Pea, etc..