By Looking at a plant externally can you tell whether a plant is C³ o

1.	By Looking at a plant externally can you tell whether a plant is C³ or C⁴? Why and how
Answer» No, because the leaves of C4 plant have a special anatomy called Kranz anatomy & difference only be observed at cellular level.for ex- wheat &maize are grasses, wheat is c3 plant ,while maize are c4 plant

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