With regard to trophic structure, the rule of 10 states that ________
A) metabolic rates roughly double with every 10°C increase in temperature
B) approximately 10% of the energy at one trophic level is transferred into the biomass of the next trophic level
C) approximately 10% of the energy at one trophic level is lost to the environment before being transferred into the biomass of the next trophic level
D) only 10% of the calories available at one trophic level will be consumed by organisms in the next trophic level
B
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How long does it take for many plastics to decompose?
a. 50 years b. 100 years c. 250 years d. 400 years
Planets appear to move ________ each night, but occasionally they appear to stop and reverse direction
A) northward B) southward C) westward D) eastward E) It varies significantly.
In which situation would you expect to be closest to peak load?
A) on an extremely hot day B) in the middle of a spring night C) on a windy day D) on a cool, sunny day E) Peak load is always the same, regardless of time or weather.
Strong evidence of a downcutting stream is ________
Fill in the blank(s) with the appropriate word(s).