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 ____.
This biome is responsible for the evolution of numerous highly specialized animal species. tropical rain forest: This biome has annual rainfall of less than 25 cm. desert: Biomes that can be found be found up to 30 degrees north or south of the equator often are _____. tropical rain forest: Tropical rain forest is being destroyed primarily for ____. lumber and agriculture: Vegetation is short trees, shrubs, and grasses, in biome that have scarce amounts of ___. water: This biome receive 200-450 cm of rain per year. rain forest: Areas with greatest animal diversity would be located near the ___. equator: A forest that receives relatively little rainfall and has acidic soil would be located near the ___. Arctic Circle: A forest that would have fallen leaves on the forest floor during the fall would be located ____ latitude. 40 degrees North