3. Which part of the plant cannot undergo vegetative propagation? A. Stem B. Fruit C. Leave D. Roots 4. Which is NOT a female part of a flower? A. Filament B. Pistil C. Ovary D. Stigma 5. What type of pollination happens when pollen grains from another are transferred to the stigma of a flower that belongs to the same plant? A. Across-pollination B. Auto-pollination C. Cross-pollination D. Self-pollination (wait for the next question)