EVERYDAY SCIENCE

Detailed explanation-1: -The top layer of the energy pyramid contains apex predators. These are mostly carnivorous animals that have no natural predators. The pyramid shape is used to represent the flow of energy because of the way that energy is used up and lost throughout the system. The primary producers take in energy from the sun.

Detailed explanation-2: -The bottom and largest level of the pyramid is the producers and contains the largest amount of energy. As you move up the pyramid, through the trophic levels to primary, secondary and tertiary consumers, the amount of energy decreases and the levels become smaller.

Detailed explanation-3: -Baleen whales, such as the blue whale, though very large, tend to eat krill, so they would be classified as secondary consumers. Seabirds, such as seagulls and Laysan albatrosses, consume a variety of other organisms, including squid, fish, and crustaceans, so they would be considered tertiary consumers.