What is external respiration?
A. Gas exchange between blood and tissue fluid
B. Ventilation (breathing)
C. Gas exchange between air and blood
D. Production of ATP
Answer: C
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The afferent arteriole is the blood vessel that carries blood to the glomerular capillaries
Indicate whether the statement is true or false
Use the following key to determine the best answer.A. First item is greater than the second item.B. First item is less than the second item.C. First item is equal or nearly equal to the second item.(1) PO2 in alveolar air(2) PO2 in venous blood
Fill in the blank(s) with the appropriate word(s).
The period of gestation when the rudiments of all major organ systems are established is the ________ trimester
A) first B) second C) third
An increase in body temperature causes
A. sweating. B. an increase in melanin production. C. an increase in keratinization of the skin. D. arterioles in the dermis to constrict. E. arrector pili muscles to contract.