Each year the average human loses __________ of
skin.
a. 7.6 oz.
b. 1.5 kilograms
c. 15 lbs.
d. 1.5 lbs.
e. none of the above
Answer: d
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Charles Yanofsky helped decipher the genetic code working with the ________ biosynthesis genes in ________.
A) leucine; Salmonella enteritidis B) phenylalanine; Klebsiella pneumoniae C) tryptophan; Escherichia coli D) glycine; Serratia marcescens
Which plants utilize a specialized carbon fixation enzyme and a unique cell structure to reduce the problems of photorespiration?
A. C3 B. Arctic C. C4 D. Desert
Which of the following is the correct path in the endomembrane system for a protein synthesized on a ribosome attached to the rough ER?
a. rough ER ? smooth ER ? Golgi complex ? plasma membrane b. rough ER ? vesicle ? smooth ER ? plasma membrane c. rough ER ? vesicle ? lysosome ? plasma membrane d. rough ER ? Golgi complex ? vesicle ? plasma membrane
Which of the following is a function of the skeletal system?
Production of red blood cells Regulation of body temperature Removal of metabolic waste Synthesis of vitamin D