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How were life forms affected by the rise in atmospheric oxygen levels that began about 2.2 million years ago?
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Which major atmospheric component is chiefly a product of life processes?
oxygen
A decrease in the blood's ability to transport oxygen is called what?
The correct name for low levels of oxygen in the blood is hypoxaemia. Low levels of oxygen in the body tissues is called hypoxia
What atmospheric gas that is a by-product of the light reaction of photosynthesis is essential to aerobic respiration?
An atmospheric gas; a by product of the light reaction of photosynthesis; essentials to aerobic respiration.
Levels of oxygen and carbon dioxide in the blood trigger the respiratory center?
Primarily it is the cabon dioxide levels that trigger respiratory drive, however in some disease states such as COPD increased oxygen levels can decrease respiratory drive.
Levels of oxygen and carbon dioxide in the blood are tested by?
Oximetry.
How are oxygen levels affected by respiration?
Oxygen levels will be decreased.
How are oxygen in the air levels affected by energy production?
Oxygen in the air levels are affected by energy production greatly, due to the way that oxygen moves. Oxygen can take over many other components, which can cause air levels to rise.
What are some atmospheric conditions during the mesozoic era?
low oxygen levels
Which process is most responsible for the increase in early Earth's atmospheric oxygen levels?
precipitation
What was the Percent of the Earth's Oxygen in the year 2000?
Since the beginning of the Cambrian period, O2 levels have fluctuated between 15% and 30% of atmospheric volume. Towards the end of the Carboniferous period (about 300 million years ago) atmospheric O2 levels reached a maximum of 35% by volume, which may have contributed to the large size of insects and amphibians at this time.Whilst human activities, such as the burning of fossil fuels, have an impact on relative carbon dioxide concentrations, their impact on oxygen levels is less significant.
Which fish is least affected by dropping oxygen levels?
Labyrinth fish such as gouramis and betas.
Which two processes are responsible for keeping the percentage of atmospheric oxygen the constant levels?
Oxygen is produced by plants and blue-green algae and consumed by burning and animals breathing.
How did the meteorite collision at the end of the Mesozoic affected the atmosphere and the biosphere?
The meteorite collision at the end of the Mesozoic era affected the atmosphere and biosphere by increasing the carbon dioxide levels and lowering oxygen levels.
What caused oxygen levels to change in the permian period?
the amount of animals breathing in the oxygen, and not enough plants.
Which two processes are responsible for keeping the percentage of atmospheric oxygen at relatively constant levels?
Oxygen is produced by plants and blue-green algae and consumed by burning and animals breathing.
What change occurred in Earth's atmosphere after the evolution of photosynthesizing prokaryotes?
The rapid rise of atmospheric oxygen illustrated in the geological record by layers of iron oxides.
Which body system would be most affected by a lower than normal atmospheric pressure?
The human respiratory system would be most affected by a lower than normal atmospheric pressure because the air would be much thinner and therefore contain less oxygen.
