Final answer:
Geography is the relevant subject for schoolwork involving the characteristics of mountain ecosystems, including various altitudes and plant populations. It deals with the physical features of the earth and the distribution of life within it, typically discussed in high school.
Step-by-step explanation:
The mention of the mountain's height and the populations of plants at different altitudes relates to the subject of Geography, as it involves physical terrains and their characteristics. It's important to understand that various mountains, such as the highest peak Mount Everest and others like Pike's Peak, not only have unique ecosystems but also have historical significance and influence on weather patterns and local biodiversity.
The fact that the populations of a plant species differ at varying altitudes suggests adaptation and possible speciation due to varying environmental conditions. Altitude plays a significant role in the type of vegetation and plant populations that can thrive on a mountain. Given the presence of a unique flower species that has given a mountain its name, this would likely be an educational point of interest in a high school geography class, which examines the distribution of species and their environmental contexts.