The Life Cycle of Plants
Problem : How does a pollen grain function in fertilization?
Problem : What are the three main components of a seed, and from what are they derived?
Problem : What is the female reproductive organ of a flowering plant, and where must pollen land in order to fertilize the eggs it contains?
Problem : Are ovaries characteristic of angiosperms or gymnosperms? What are their functions?
Problem : How is cross-pollination encouraged in most angiosperms?