The loading of sugars into phloem goes __________ the concentration gradient and involves
a(n) __________ process.
a. against; active
b. against; passive
c. with; active
d. with; passive
A
Biology & Microbiology
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A cover, or ________, is used by certain gastropods when they retreat into their shell and close the opening
a. operculum b. periostracum c. univalve d. radula
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The breaking of a large organic molecule into smaller, individual subunits involves multiple ________
A) hydrolysis reactions B) osmotic reactions C) dehydration synthesis reactions D) hydrosynthetic reactions
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Which is the first and largest blood vessel that carries oxygenated blood to the systemic circuit?
A. Aorta B. Superior vena cava C. Coronary arteries D. Pulmonary artery E. Carotid artery
Biology & Microbiology
The following is an emerging viral disease:
A. Herpes B. Zika C. Rubella D. Mumps E. Botulism
Biology & Microbiology