The first structure in the kidney to collect newly formed urine is the
A. renal cortex.
B. renal sinus.
C. renal capsule.
D. minor calyx.
E. renal pelvis.
Answer: D
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Which of the following occurred in the presence of tetrodotoxin?
A) The number of action potentials increased. B) The number of action potentials decreased. C) The size of the action potential decreased. D) The size of the action potential increased.
Which of the following best describes a nucleosome?
a) a short stretch of DNA partly wrapped around a spool of histones b) an mRNA molecule and many attached ribosomes c) a group of nucleoli in the nucleus where ribosomes are produced d) a tRNA molecule and its appropriate amino acid
The pharyngeal tonsils are the ones commonly removed in a tonsillectomy
a. True b. False Indicate whether the statement is true or false
Which of the following is a vesicle that contains enzymes?
A) ribosome
B) lysosome
C) nucleosome
D) chromosome
E) hyaluronan