Randy is participating in a strong man competition and is required to pull a yacht as far as he can. Which type of chemical process will his skeletal muscles rely on during this competition?
A. anaerobic respiration
B. aerobic respiration
C. both anaerobic and aerobic respiration
A
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Urine flow from the renal pelvis to the urinary bladder is produced by
A. ciliary action in the renal pelvis. B. suction from the urinary bladder. C. peristalsis of the ureters. D. hydrostatic pressure from the small intestine. E. contraction of the detrusor muscle.
The dorsal root, which exits the spinal cord, carries ________________________________________ nerves
Fill in the blank(s) with correct word
In cardiac muscle, calcium ions
A) are not released from the sarcoplasmic reticulum. B) do not bind to troponin molecules. C) play no role in the process of contraction. D) enter the cell through slow voltage gated ion channels. E) play an important role in repolarizing the membrane after the depolarization phase.
The cones are most densely packed in the
A. fovea centralis. B. vitreous humor. C. blind spot. D. choroids.