Water draining from the land mixes with
seawater carried in on tides in which of the
following?
a. upper littoral
b. midlittoral
c. lower littoral
d. estuary
e. upwellings
D
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How do the reproduction of human immunodeficiency virus (HIV) and bacteriophage lambda differ from each other?
A. HIV encodes and uses reverse transcriptase, while lambda phage does not B. HIV production requires integrase, while bacteriophage lambda does not C. HIV can reproduce in either eukaryotic or prokaryotic cells, while bacteriophage lambda can only infect bacteria D. bacteriophage lambda attaches to specific proteins on the cell surface, while HIV does not E. None of these is correct
The removal of a phosphate group during an enzyme-catalyzed reaction takes ____
a. 1012 years b. about 10 milliseconds c. about 1021 milliseconds d. more time than for an uncatalyzed reaction e. less time at 1000oC than at 100oC
Radioisotopes have a number of uses in science and medicine. These uses include which one of the following?
A) repairing damaged heart tissue B) dating fossils and treating cancer C) providing the power supply in heart pacemakers D) treating asthma and regulating nerve transmission E) curing diabetes
Following running for a long distance, the muscle soreness that occurs the next day is due to chemicals released to repair damaged muscles
Indicate whether the statement is true or false