All of the following are correct EXCEPT:
a) The first law of them odynamics states that energy can never be created or destroyed
b) the second law of thermodynamics states that every conversion of energy is not perfectly efficient and includes the transformation of some energy into heat
c) heat is one of the most useful forms of energy to living organisms
Ans: c) heat is one of the most useful forms of energy to living organisms
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An IgG molecule has two
A. heavy chains. B. light chains. C. antibody binding sites. D. antigen binding sites. E. heavy chains, light chains AND antigen binding sites.
In an experiment, the control group is
a. not subjected to experimental error. b. exposed to experimental treatments. c. maintained under strict laboratory conditions. d. treated exactly the same as the experimental group, except for one variable. e. statistically the most important part of the experiment.
Within the stomach lining, special cells secrete substances to aid digestion. Which type of cell secretes hydrochloric acid?
A. enteroendocrine cells B. mucous cells C. chief cells D. parietal cells
The human genome has 3.2 × 109 nucleotide pairs. At its peak, the Human Genome Project was generating raw nucleotide sequences at a rate of 1000 nucleotides per second
At the rate of 1000 nucleotides per second, how long would it take to generate 3.2 × 109 nucleotides of sequence?