The graph below describes the velocity, measured in meters per second (m/s), of an object over a period of time, measured in seconds (s). Velocity over Time
A B B. C D
8
Velocity (m/s)
ofi
4
8
12
16
Time (s)
Which section of the graph represents negative acceleration?
ОА
B
С
D

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?