Which of the following describes an example of phenotypic plasticity?

Which of the following describes an example of phenotypic plasticity?

Group of answer choices

Two genetically identical plants are grown in different environments. Differences in gene expression result in different phenotypes.

 

100 seeds randomly chosen from a population are placed in each of two environments. Those that germinate have different phenotypes.

 

After a geographic barrier separates two populations of plants, the plants on one side of the barrier are taller on average.

 

Higher mutation rates are observed in one environment than another.