Explain the effect of high altitude on breathing control
What will be an ideal response?
At higher altitudes there is less available oxygen. However, the main sensors controlling the rate of breathing respond to a rise in CO2 in the blood, not a lowered level of O2 . Therefore, a person can suffer from low enough levels of oxygen to experience symptoms of altitude sickness without triggering an increase in the rate of breathing.
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RNA splicing is catalyzed by a complex of RNA and protein referred to as a ____
Help with this statement, please? Thanks.
In which of the following habitat types would species diversity be expected to be relatively low?
a. high environmental stress b. low environmental stress c. continental ecosystems d. ecotones e. mature successional communities
The full range of energy in sunlight can best be described as:
A. infrared radiation B. ultraviolet light C. visible light D. electromagnetic radiation
What is the primary function of the large intestine?
a. to absorb water b. to complete the digestion of fats c. to complete the digestion of protein d. to absorb nutrients