Energy transfer between trophic levels in aquatic systems is generally
A) less efficient than terrestrial food pyramids.
B) less efficient than a detritus food web because aquatic systems lack fungi.
C) inverted, in which more energy is transferred from one trophic level up to the next.
D) more efficient than terrestrial food pyramids.
D
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The ________ is what needs to be overcome in a reaction so that it can proceed to the products.
A. activation energy B. bond energy C. catalyst D. thermodynamics E. entropy
Few peripheral regions continue to use wood as a significant source of energy
Indicate whether this statement is true or false.
By Newton's third law, if action is the force the string pulls on the can to make it follow a circular path, the reaction force is then
A. the can pulling on the string. B. the outward tug on the string. C. string pulling on Nellie's hand. D. Nellie's pull on the string.
Planetesimals are ____________________. Fill in the blank(s) with the appropriate word(s)