The diagram shows a cross-section of a water lily leaf. Water lilies are hydrophytes. Their air spaces are larger than those in most other plants. How does this adaptation help the lily to survive?
- Aincreases the number of chloroplasts for photosynthesis
- Bmakes the leaf buoyant enough to float on water
- Cprovides more space for the xylem and phloem
- Dspeeds up gas exchange between the leaf and water