How does holding your breath affect the pH of blood? Explain.
What will be an ideal response?
Answer: Holding your breath causes PCO2 to rise in the lungs and blood. The rise in PCO2 causes an increase in carbonic acid, and a lowering of blood pH.
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Bacteria from the nasal cavity can travel to the ear
Indicate whether the statement is true or false.
What does CH4 mean?
A) This is an inorganic molecule. B) This was involved in a redox reaction. C) There is one carbon and four hydrogen atoms. D) There are four carbon and four hydrogen atoms.
What is the life span of epithelial cells in the stomach lining?
A. 1 to 2 days B. 3 to 6 days C. 7 to 10 days D. 15 to 17 days E. Several decades
Antibodies secreted in breast milk
A. are IgG antibodies. B. are IgA antibodies. C. provide natural active adaptive immunity. D. include the cytokine interleukin 2. E. promote inflammation.