Antarctica is home to a peak shaped like a perfect pyramid — but contrary to what conspiracy theorists say, the mountain's four symmetrical faces were forged through natural processes.

In biology the relationship of what eats what and how energy passes through an ecosystem is called a food ... which is living tissue. A pyramid of numbers approximately shows the numerical ...

The biome concept organizes large-scale ecological variation. Terrestrial biomes are distinguished primarily by their predominant vegetation, and are mainly determined by temperature and rainfall.