In the process of quorum sensing, bacteria release signaling molecules in ____ concentrations as cell density ____
a. increasing; decreases
b. increasing; increases
c. decreasing; increases
d. decreasing; decreases
e. constant; increases
ANSWER: b
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A. static B. fluid C. fluctuating D. charged
A layer of permanently frozen ground is called permafrost. Indicate whether the statement is true or false
If a bone fragment resulting from a broken nose pushed against the olfactory (smell) nerve, triggering an action potential, the person would
A) register the sensation as a smell. B) register the sensation as a visual stimulus. C) register the sensation as a sound. D) lose her sense of smell. E) not register the sensation at all.
Electrons that participate in chemical bonding are typically located closest to the nucleus.
Answer the following statement true (T) or false (F)