What term is used to refer to bending at the elbow?
A. Flexión of the arm
B. Flexión of the forearm
C. Extension of the arm
D. Adduction of the forearm
B. Flexión of the forearm
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During meiosis I, maternal and paternal chromosomes fuse together during the process called ________ to form a ________.
Fill in the blank(s) with the appropriate word(s).
Despite the fact that the partial pressure difference is so much smaller for CO2, why is there as much CO2 exchanged between the alveoli and blood as there is O2, ?
a) CO2 is much more soluble in blood than O2. b) The capillary walls are more permeable to CO2 than O2. c) CO2 is a smaller molecule and diffuses faster than O2.
Which of the following is false regarding sleep?
A. REM sleep is important for memory processing and consolidation. B. During REM sleep, the brain uses as much oxygen as when the individual is awake. C. The longest bouts of REM sleep occur early in the night, with shorter REM periods toward the morning. D. Different stages of non-REM sleep are characterized by different brain waves.
Which of the following is the correct formula for vital capacity (VC)?
A. VC = VT + IRV + ERV B. VC = VT + IRV C. VC = VT + IRV + ERV + RV D. VC = ERV + RV