Read the following statements and choose the following option: 1. Plasticity is the ability of plants to follow different pathways in response to environment 2. Development is considered as the sum of growth, differentiation and variation 3. Difference in shapes of leaves produced in air and those produced in water in buttercup represent the heterophyllous development due to environment 4. The phenomenon of heterophy

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Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called plasticity, leaves of the juvenile plant are different in shape from those in mature plants. On the other hand, difference in shapes of leaves produced in air and those produced in water in buttercup also represent the heterophyllous development due to environment (Figure 13.9). This phenomenon of heterophylly is an example of plasticity.