Low blood oxygen, known as hypoxemia, means that the level of oxygen in the blood has fallen below normal levels, due to one or more of many different causes. Under most circumstances, breathing room air, normal readings range from 95 to 100 percent.ow blood oxygen, known as hypoxemia, means that the level of oxygen in the blood has fallen below normal levels, due to one or more of many different causes. Under most circumstances, breathing room air, normal readings range from 95 to 100 percent.
Which biome is characterized by very low temperatures, little precipitation, and permafrost? Tundra, Which two biomes have the least amount of precipitation? Desert and tundra: A biome is identified by its particular set of abiotic factors and its ___. characteristic plant and animal communities Palm trees and shrubs around a small pool of water in the middle of a barren desert is an example of ____.
Tropical and subtropical moist broadleaf forests. Tropical and subtropical moist broadleaf forests (TSMF), also known as tropical moist forests, are a tropical and subtropical forest biome. Tropical forests regions with lower rainfall are home to tropical dry broadleaf forests and tropical coniferous forests. Temperate rain forests also occur in certain humid temperate coastal regions. The biome includes several types of forests: 1  Lowland equatorial evergreen rain forests, commonly known as tropical rainforests, are forests which receive high rainfall (more than 2000 mm, or 80 inches, annually) throughout the year.