When a dolphin jumps, it moves its muscles and chemical potential energy is converted to kinetic energy. some of this energy is lost to the dolphin. explain why this phenomenon does not violate the law of conservation of energy. the dolphin is a closed system, so energy is allowed to exit the system. the energy is transferred to waves in the surrounding water. the muscles recapture the energy when they relax after contractions. the law of conservation of energy does not apply to biological systems.

Which is an accurate description of the physical characteristics of poland? its fertile soil is found only along riverbanks, and its mountainous region in the northwest has few mineral resources. it is mostly flat with fertile soil except in the east and northeast, and the mountainous region in the south has large deposits of coal and copper. it is covered with thick forests, and it has large reserves of coal, petroleum, and natural gas. its landscape is dominated by plateaus, mountains, and high ridges, and it has large deposits of sulfur and copper in the northeast.