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 ____.
At the low latitudes (0Â° to 23Â°) of the Tropics the sun's rays strike the Earth most directly. As a result, the biomes located there (tropical rain forest, tropical grassland and the warm desert) receive the most sunlight and have the highest temperatures.long with temperature and precipitation, these are factors that distinguish one biome from another and influence the dominant types of vegetation and animals that have adapted to a biome's unique characteristics.