DENDROLOGY

Detailed explanation-1: -Animal pollination is more precise and the chance of cross pollination is less since the animals mostly visit the same kind of flower.

Detailed explanation-2: -The studies of pollen capture in wind-pollinated herbs demonstrate that pollen transfer efficiency is not substantially lower than in animal-pollinated plants as is often assumed. These findings challenge the explanation that the evolution of few ovules in wind-pollinated flowers is associated with low pollen loads.

Detailed explanation-3: -Cross-pollination is the most advantageous of the two types of pollination since it provides species with greater genetic diversity. Maturation of pollen and ovaries at different times and heterostyly are methods plants have developed to avoid self-pollination.