The main product of the Calvin cycle is
A. carbon dioxide.
B. a carbohydrate.
C. oxygen.
D. ATP.
E. NADPH.
B. a carbohydrate.
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Recall Stiling and Drake's experiments using chambers with elevated CO2. What are the implications of their experiment for farmers in the coming decades, if CO2 levels rise as predicted?
A. Farmers will see higher crop productivity and less insect damage, but the crops will be less nutritious. B. Farmers will see higher crop productivity and nutrition, but there will be more insect damage. C. Farmers will see lower crop productivity and nutrition, in addition to more insect damage. D. Farmers will see higher crop productivity, but there will be more insect damage and the crops will be less nutritious.
Which step in protein synthesis involves the formation of messenger RNA from a strand of DNA?
a. termination b. elongation c. translation d. transcription
Which of the following statements accurately describes prophase?
a. The cell appears to have a line of chromosomes across the midregion. b. The nuclear envelope becomes visible. c. The cell constructs microtubules to form a spindle. d. Chromatids separate and become known as chromosomes.
Bacterial ________ are sites of metabolite storage.
A. nucleoids B. vacuoles C. inclusions D. pili E. periplasm