The rediscovery in 1900 of Mendel's now famous experiments of the 1850–60s:
a. solved the argument about whether natural selection acted in a slow way on small genetic changes or in a sudden, saltational manner.
b. added fuel to the argument about whether natural selection acted in a slow way on small genet-ic changes or in a sudden, saltational manner.
c. None of the above.
d. All of the above.
B
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. Effective treatment of wastewater/sewage is reflected in a(n)
A. lower BOD. B. higher BOD. C. unchanging BOD. D. increase in sulfur.
The evolution of photosynthetic organisms required a source of hydrogen for the synthesis of complex, high-energy molecules. What is the source of hydrogen for today's photosynthetic organisms?
a. sugar b. water c. amino acids d. hydrogen sulfide e. air
Suppose that you encounter an antigen for the first time. What types of cells stored in your lymph nodes can be activated in case you encounter the antigen again?
A) memory cells B) effector cells C) phagocytic cells D) helper T cells
Which of the following processes involves hydrogen ions moving through ATP synthase channels, generating ATP molecules?
A) Glycolysis B) The Krebs cycle C) The ETC