A pyramid of energy is used to analyze the amount of energy available at each feeding level in a food chain. Using the pyramid above, answer the question: Why is the amount of energy available to the tuna less than the amount available to the mackerel? There aren't enough zooplankton

There aren't enough phytoplankton

While mackerel are getting energy, they are also using some of it.

If the tuna dies, the mackerel will eat it.