Insects and some other external agent enhances the ___ in sexual plant reproduction

• A. Germination
• B. Scarification
• C. Pollination
• D. Stratification

Answer: (C)

Pollination is the transfer of pollen from the male part of a flower to the female part, enabling fertilization. Insects and other external agents act as pollinators, moving pollen as they visit flowers for nectar or pollen themselves, which increases the chance that pollen reaches a receptive stigma and seeds can form.

Germination is the process of a seed beginning to grow into a plant after fertilization, not the act of pollen transfer. Scarification is a treatment that weakens or breaks the seed coat to start germination, unrelated to pollination. Stratification is a cold-treatment process used to break seed dormancy in some species.