The first law of thermodynamics states which of the following?
a. Energy can neither be created or destroyed.
b. Entropy increases as time goes by.
c. Energy can be created from matter.
d. Entropy decreases as time goes by.
a. Energy can neither be created or destroyed.
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Which type(s) of RNA is/are translated into proteins?
A) mRNA B) rRNA C) tRNA D) mRNA and rRNA E) mRNA, rRNA, and tRNA
Which of the following was produced in experiments on primitive Earth conditions conducted by Miller-Urey and others?
A. methane and oxygen B. ammonia and water C. amino acids D. ammonia and hydrogen sulfide E. CO2 and H2O
CAM photosynthesis
a. is the same as C4 photosynthesis. b. is an adaptation to cold environments in the Southern Hemisphere. c. is prevalent in desert plants that close their stomata during the day. d. occurs in plants that live in marshy areas. e. stands for "chloroplasts and mitochondria."
Treponema pallidum can be transmitted
A. by contact with infected fomites. B. through sexual intercourse. C. from an infected mother to her unborn child. D. both by contact with infected fomites and through sexual intercourse. E. both through sexual intercourse and from an infected mother to her unborn child.