Which of the Following Were Key Events in the Evolution

Question

Which of the following were key events in the evolution of vascular plant leaves?
A)the conversion of stems (or branches)to flattened structures
B)the development of apical meristem identity genes
C)the development of leaf meristem cells
D)the development of leaf identity genes

Accepted Answer

The evolution of vascular plant leaves involved several key events, including the conversion of stems (or branches) to flattened structures, which allowed for more efficient photosynthesis. The development of leaf meristem cells was crucial for the formation of leaves, as these cells are responsible for the growth and differentiation of leaf tissues. Additionally, the development of leaf identity genes was essential for specifying the identity and proper development of leaves, distinguishing them from other plant organs. The development of apical meristem identity genes, while important for the overall growth and development of plants, is not specifically tied to the evolution of leaves.