Energy flow rates in ecosystems include those: A) from the sun to producers, from producers to consumers,...

1) Energy flow rates in ecosystems include those:
A) from the sun to producers, from producers to consumers, from consumers to the next trophic level, and from the final trophic level to the next trophic level.
B) from the sun to producers, from producers to consumers, from consumers to the next trophic level, and from the final trophic level to the decomposers.
C) from the sun to producers, from producers to consumers, from consumers to the decomposers, and from the decomposers to the producers.
D) from the sun to producers, from producers to consumers, from consumers to the decomposers, and from the decomposers to the next trophic level.
2) A trophic efficiency refers to:
A) the number of offspring a species reproduces.
B) the transfer of energy transferred between trophic levels.
C) the number of species in a trophic level.
D) the number of biomass in an ecosystem.
3) The graph shows energy transfer through trophic levels in a grassland ecosystem.
Based on this graph, what happens to energy as it moves up trophic levels?
A) Energy increases at each level.
B) Energy remains constant at all levels.
C) Energy decreases dramatically at each level.
D) Energy fluctuates randomly between levels.
Justify your answer.