Darwin better understood the mechanism for natural selection after he read a book by ________ on the rate of growth of populations.
A. Charles Lyell
B. Thomas Malthus
C. Alfred Wallace
D. Jean Lamarck
Answer: B
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In the pathway leading from threonine to isoleucine, threonine dehydratase is ____ by the presence of threonine
Fill in the blank with the appropriate word.
A group of cells having similar structure and function is called a(n)
A. tissue. B. organ. C. organ system. D. organism. E. population.
Archaea in the class ________ are thermoacidophiles that lack cell walls, but strengthen their plasma membranes with large quantities of caldarchaeol, glycoproteins, and lipid-containing polysaccharides.
A. Pyrococci B. Thermococci C. Thermoplasmata D. Archaeoglobus
Since Rubisco can either fix carbon or oxidize RuBP, what condition will be most favorable for glucose production?
A. dry climate B. high oxygen environment C. moderate temperatures D. high temperatures