A(n) __________ property is a characteristic of a
system that does not appear in any of its component
parts.
a. efferent
b. emergent
c. elective
d. energetic
e. living
Answer: b
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Milk production in women is stimulated by
a. estrogen. b. prolactin. c. oxytocin. d. prostaglandin. e. progesterone
The column of water extending in tubes from plant
roots to leaves is maintained by a. cohesion among water molecules. b. ionic bonds. c. covalent bonds. d. hydrophobic interactions. e. hydrophilic interactions.
Genes isolated from mice or rats can often be used as ____________________ to identify and isolate the human
version of the same gene. Fill in the blank(s) with the appropriate word(s).
Which association is NOT correct?
Select one: a. Periodontitis is a loss of bone and loosening of teeth that occurs in old age. b. Gingivitis is an inflammation of the gums that can spread to the periodontal membrane. c. The loss of 20 deciduous teeth is a natural process that occurs as a child. d. Tooth decay or dental caries is a natural erosion of teeth from wear and tear. e. Tonsillitis is an inflammation of the tonsils.