Which of the following is an example of a hydrocarbon?
a. C2H6O
b. C8H18
c. C6H12O6
d. CO2
e. C2H6S
B
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Choose the option that best describes the relationship between the cell wall thickness of parenchyma cells versus sclerenchyma cells
A) The cell walls of parenchyma cells are thinner than those of sclerenchyma cells. B) The cell walls of parenchyma cells are thicker than those of sclerenchyma cells. C) The thickness of the cell walls for both types of cells is roughly equal. D) The thickness of the cell walls for both types of cells is too variable for a comparison to be made.
Which of the following organisms may grow at pH 3.5?
A. Clostridium B. Streptococcus C. fungi D. lactic acid bacteria E. fungi AND lactic acid bacteria
In the cyclic pathway, electrons ejected from photosystem I return to:
a. photosystem II b. photosystem I c. the stroma d. the outer chloroplast membranes e. ATP synthase
Which of the following is a eudicot?
a. corn b. lily c. dandelion d. orchid e. palms