I think the answer to that question is d and a
I believe the answer is: A fly eats a piece of fruit;
From all organism on earth, those who obtain their food through photosynthesis are the one that contain the largest amount of energy, and the energy transferred would keep getting smaller as the organism being consumed by other organism. From the sample above, only trees where the fruit is hanging are the one that obtain their food through photosynthesis
<span>I would say its C) the fall of Communist states in Europe</span>
