Which of the following describes the role of phloem in a vascular plant?
A.A two-way flow of water and carbohydrates from chloroplasts
B.A one-way flow of protein and carbohydrates to the leaves
C.A transfer of hormones and sugar solution to the roots
D.A transfer of water and nutrients upward from the soil
A.A two-way flow of water and carbohydrates from chloroplasts
B.A one-way flow of protein and carbohydrates to the leaves
C.A transfer of hormones and sugar solution to the roots
D.A transfer of water and nutrients upward from the soil