Why is it important that a plant's phloem extends into its leaves?
AThe phloem allows carbon dioxide to enter the leaf and oxygen to escape it during photosynthesis.
BThe phloem brings water and nutrients up from the roots so that photosynthesis can take place.
CThe phloem collects the sugars made during photosynthesis and carries them around the plant.
DThe phloem protects the leaf from sun damage and excess water loss on hot, sunny days.
AThe phloem allows carbon dioxide to enter the leaf and oxygen to escape it during photosynthesis.
BThe phloem brings water and nutrients up from the roots so that photosynthesis can take place.
CThe phloem collects the sugars made during photosynthesis and carries them around the plant.
DThe phloem protects the leaf from sun damage and excess water loss on hot, sunny days.