Which of the following are accessory photosynthetic pigments that expand the spectrum of light to provide energy for
photosynthesis?
a. carotenoids only
b. chlorophyll a only
c. chlorophyll b only
d. carotenoids and chlorophyll a
e. carotenoids and chlorophyll b
e
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What initiates T cell activation?
What will be an ideal response?
What are the reactants of the Calvin cycle?
a. CO2, H2O, and ATP b. CO2, ADP, and NADP+ c. CO2, ATP, and NADPH d. H2O, ATP, and NADPH e. H2O, ATP, and NADPH
Lions are not always successful hunters and may go days between meals. What evolutionary adaptation helps the lion survive periods of famine?
A) formation of a two-chambered stomach B) an extended cecum C) an expandable stomach D) a rich microbial flora in the colon
The chemical bond connecting one nucleotide with the next along one strand of a DNA molecule is called a
A. phosphate bond. B. phosphodiester bond. C. hydrogen bond. D. glycosidic bond. E. peptide bond.