When water molecules exposed to the air form hydrogen bonds between adjacent water molecules below and beside
them, molecules in the upper layer become more resistant to separating from those underneath. This property of water is
known as ____.
a. cohesion
b. adhesion
c. a hydration layer
d. a water lattice
e. surface tension
ANSWER: e
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Isomers are two or more molecules with ____ chemical formula and ____ molecular structures
a. a different; different b. the same; different c. a different; the same d. the same; the same e. a structural; theoretical
Steroids are simple lipids
Indicate whether this statement is true or false.
Which of the following concepts best describes the wide variety of dog species we observe, ranging from the domesticated golden retriever or the basset hound, to the wild dogs of Africa, to foxes?
a. evolution b. taxonomy c. special creation d. preadaptation e. inheritance of acquired characteristics
In sickle cell anemia, glutamic acid is
substituted for
a. valine b. lysine c. serine d. arginine e. phenylalanine