Your thigh bone, the largest bone in your body, is called the ________
A) tibia
B) femur
C) fibula
D) pelvis
B
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Biosynthesis of glucose can occur by compounds other than sugars via gluconeogenesis
Indicate whether the statement is true or false.
The most common isotope of carbon has an atomic number of 6 and a mass number of 12, while the most common
isotope of oxygen has an atomic number of 8 and a mass number of 16. A molecule of CO2 made up of these common isotopes has a molecular weight of ____.
a. 28 b. 44 c. 56 d. 14 e. 22
Researchers attempt to explain the persistence
of altruism by the theory of a. self-sacrificing behavior. b. dominance hierarchy. c. social behavior. d. inclusive fitness. e. sexual selection.
All of the following were produced in experiments on primitive Earth conditions conducted by Miller-Urey and others, except for
A. prokaryotes. B. amino acids. C. organic molecules. D. urea. E. hydrogen cyanide.