One feature that phloem cells have that xylem cells lack is
A. plasmodesmata.
B. cytosol.
C. cell walls.
D. membranes.
E. water potential.
Answer: B
Biology & Microbiology
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A fixed action pattern is a sequence of behaviors that, once triggered, is ____
Fill in the blank with the appropriate word.
Biology & Microbiology
The body's ability to absorb fluid is limited to approximately ____ per hour.
a. 1 pint b. 1 gallon c. 1 quart d. 1 ounce
Biology & Microbiology
What are the steps involved in B cell activation?
What will be an ideal response?
Biology & Microbiology
Which of the following is INCORRECT for ethanol fermentation?
A. A source of organic sugar is required, for instance from malt. B. Results in a net production of NADH. C. Glucose is oxidized to pyruvate as one of the steps. D. Carbon dioxide and ATP are produced. E. NADH is used to reduce acetaldehyde to ethanol.
Biology & Microbiology