Morphological structures, both micro- and macroscopic, have been used as evidence to support the idea that land plants arose from a green algae clade.Of these structures, the one that contributed most to the success of plants on land was

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The cuticle, a waxy protective layer on the epidermis of leaves and stems, significantly contributed to the success of plants on land by reducing water loss and providing protection from microbial attack, enabling plants to adapt to terrestrial environments.

Morphological Structures, Both Micro- and Macroscopic, Have Been Used as Evidence