The CNL, by comparison, is a master's-prepared advanced generalist. Education and preparation are broad with no specialization. Evidence-based practice is assimilated and applied to the microsystem in which the CNL functions.
Tundras are among Earth's coldest, harshest biomes. Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy and rainfall is scant. Tundra lands are snow-covered for much of the year, until summer brings a burst of wildflowers.
The tierra caliente zone is hot and comprises tropical rainforests and savannas. The tierra templada is a temperate zone of evergreen forests. Coffee is an important economic crop in this zone. The tierra fria is the upper limit of natural tree growth and is a region of high plateaus and mountain valleys.