a LAB 8- The leaf: internal structure *Phloem is always towards the lower epidermis Part A. Label the internal structures of a MONOCOT leaf (Zea mays) f 20 Label Leaf internal structure a b C 90 d d Enable Editing e a b Focus B Part B. Label the internal structures of a DICOT leaf (Heliantus sp.) e f Label Leaf internal structure a b + e a b C d