In order to work best, enzymes ____
a. always need coenzymes
b. randomly grab surrounding molecules
c. need low pH
d. need high temperatures
e. need set environmental conditions, specific for each enzyme
ANSWER: e
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The specific heat of water is
a. a gram of substance. b. energy required to raise a gram of substance 1? F. c. calories need to heat seawater. d. energy required to raise a gram of substance 1? C. e. energy required to evaporate 1 gram of liquid water.
Match the specialized sense to the role it plays.
1. magnetic field receptors 2. pit organs 3. ampullae of Lorenzini ___ sense infrared radiation in prey ___ sense electrical currents from muscles ___ help long-distance migratio
Chart the path of blood through the heart, including the valves passed. What will be an ideal response?
In general, microbial growth in the open ocean is most limited by the availability of ________.
A. iron B. manganese C. phosphorus D. nitrogen