Answer:
D
Humans are reducing their fossil fuel consumption.
The food supply of the carnivores in an ecosystem is the available herbivores, so in order for the carnivores to survive for an extended amount of time their population must be considerably less than their food supply, so that there is an abundance of prey available. Populations of predator and prey have a cyclic increasing and decreasing relationship to regulate the number of both.
C. The organism would slow down its breathing, so that the heart could recover.
Ben CAN invert the pyramid to show the flow of energy; it will then show which insects are eaten by which birds, instead of the other way around.
A.Long term energy storage