Answer:
Phenotypic plasticity
Explanation:
Phenotypic plasticity is the capacity that many plants have to express different phenotypes (for example, various morphological traits, like the different leaves of the oaks in this example) without a change in their genetic makeup when they are subjected to variations in their environment (like the variations in the sunlight exposure of the example). This plasticity has been linked with their success in expanding over a vast territory with very variable climate. Phenotypic plasticity does not limit itself to morphology. It can also be seen in variations in the anatomy, physiology, reproduction and seedling development among other traits.
