1. Plum is a _______ flowering plant.   naked-seeded   closed-seeded   2. Australian Cedar tree is the tallest flowering plant.   True   False   3. Ferns have leaves, stems, and roots.   True   False   4. _______ is a flowering plant.   Mushroom   Guava   5. Mango is a _______ plant.   flowering   non-flowering   6. _______ is a naked-seeded plant.   Maple   Sunflower   Guava   Cedar   Hint Half-n-half Clue   7. Wolffia ('least duckweed') is the smallest flowering plant.   True   False