If a person sits on a cool floor, heat from that person is transferred to the floor. This is an example of
A) convection.
B) radiation.
C) conduction.
D) evaporation.
Answer: C
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The causative agent of Hansen's disease is
A) Mycobacterium marinum. B) Mycobacterium ulcerans. C) Mycobacterium hansen. D) Mycobacterium leprae.
During the DNA replication process, which of the following organisms would have the fewest origins of replication per cell?
A. a rapidly dividing Streptococcus bacterium B. a yeast cell C. a human D. a young oak tree E. a fruit fly
Viruses are not considered "living" by some biologists because they
a. have no metabolism. b. do not reproduce. c. cannot move. d. contain protein.
The C4 photosynthetic pathway is most common in
A) gymnosperm trees. B) angiosperm trees. C) algae, bryophytes, and ferns. D) grasses and shrubs in warm and dry climates.