Question

Which character mostly differentiates angiosperms from gymnosperms?

• A. Triploid endosperm
• B. Vessels in xylem
• C. Seeds enclosed in fruits
• D. Attractive petals

Answer 1

Answer: (C)

Seeds enclosed in fruits

angiosperms are also called as flowering plants. Seeds of angiosperms are enclosed in the ovary (usually a fruit). Gymnosperms do not have flowers or fruits. In gymnosperms, the ovules are not enclosed in an ovary. They lie exposed on the leaf-like structures called as the megasporophylls. A long time span separates pollination and fertilization, and the ovules begin to develop into seeds long before fertilization has been accomplished; in some cases, in fact, fertilization does not occur until the ovules (seeds) have been shed from the tree.