The graph illustrates the amount of water vapour lost by two different plants that are growing under identical conditions. What could explain the difference in the volume of water vapour lost from the two plants?
- APlant X has most of its stomata on the lower surfaces of its leaves.
- BPlant Y has most of its stomata on the upper surfaces of its leaves.
- CThe surfaces of the mesophyll cells of plant X have a greater surface area.
- DThe surfaces of the mesophyll cells of plant Y have a greater surface area.