1. _______ is a non-flowering plant.   Plum   Spirogyra   2. _______ is a naked-seeded plant.   Maple   Guava   Cedar   Sunflower   Hint Half-n-half Clue   3. Moss and riccia are green, flowering plants.   True   False   4. Mushroom is a _______.   fern   fungus   5. _______ is a flowering plant.   Mushroom   Guava   6. Spirogyra is _______.   a fungus   an algae   7. Australian Cedar tree is the tallest flowering plant.   True   False