A calorie is the commonly used unit of chemical energy. It is also the unit of  

A.  light.
B.  magnetism.
C.  sound.
D.  heat.
E.  radioactivity.


D.  heat.

Biology & Microbiology

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A high therapeutic index is

A. more toxic to the patient. B. less toxic to the patient. C. has no effect on the patient. D. has no effect on the pathogen

Biology & Microbiology

The vomeronasal organ detects:

a. pressure b. light c. pheromones d. pain e. sound

Biology & Microbiology

Air and water vapor cross the epidermis via

a. pits. b. perforations. c. osmosis. d. stomata. e. tracheids.

Biology & Microbiology

Which of the following is false about the diatoms?

a. They have been around for millions of years. b. They are important marine primary producers. c. They have overlapping pillbox-like shells. d. Their shells are made of calcium carbonate. e. They are important in the global cycling of carbon.

Biology & Microbiology