1. _______ is a flowering plant.   Mushroom   Guava   2. _______ is a closed-seeded flowering plant.   Pine   Fir   Oak   Spruce   Hint Half-n-half Clue   3. Cycas is a _______ plant.   naked-seeded   closed-seeded   4. Mushroom is a _______ plant.   non-flowering   flowering   5. Spirogyra is _______.   an algae   a fungus   6. _______ is a non-flowering plant.   Spirogyra   Plum   7. Ferns have leaves, stems, and roots.   True   False