Introns represent a genome scrap yard that provides DNA segments for genome evolution and a variety of small RNA molecules
Indicate whether the statement is true or false
TRUE
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The ________ triangle of the neck is bounded by the sternocleidomastoid, omohyoid, and posterior digastric muscles. Palpation here will allow one to feel the pulsation of the common ________ artery. (Same word for both blanks).
Fill in the blank(s) with the appropriate word(s).
Phospholipids
a. consist of a polar, hydrophilic, phosphate-bearing, head and two nonpolar hydrophobic, fatty-acid tails. b. are aligned in a lipid bilayer in membranes. c. serve as carrier molecules. d. only (a) and (b) above. e. all of these answers.
A single action potential in a skeletal muscle lasts only about 3-5 msec
Indicate whether the statement is true or false
When does urine production end?
A) when the fluid enters the distal convoluted tubule B) when the fluid enters the collecting ducts C) when the fluid enters the papillary ducts D) when the fluid enters the minor calyx E) when the fluid enters the renal pelvis