As a result of the law of conservation of energy, a fish cannot gain more energy than it consumes. which method, using an isolated system of fish in an aquarium, would best test this hypothesis?
a) measure the total energy in the fish, the aquarium, and the energy of the food fed to the fish. then measure the energy in the fish and the aquarium after feeding and determine the difference.
b) measure the total energy in the fish before feeding and the energy of the food fed to the fish. then measure the energy in the fish after feeding and determine the difference.
c) measure the total energy of the aquarium before feeding and the energy of the food fed to the fish. then measure the energy in the aquarium after feeding and determine the difference.
d) measure the total energy of the food before feeding and the energy of the fish after feeding. then measure the energy in the aquarium after feeding and determine the difference.
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