Question

Explain how the ecosystem that you selected follows the law of conservation of mass and the law of conservation of energy. It is said that only about 10% of stored energy is transferred between trophic levels of the ecosystem. Be specific in using your ecosystem in your example.
im doing it on the ocean

Answer 1

In the ocean, light is used by phytoplankton in order to produce sugar.  10% of the energy from the sun is available to the zooplankton that eat the phytoplankton, the rest of the energy is lost as heat or through powering body building/functions/reproduction.  Whatever eats the zooplankton receives 10% of that energy in order to grow