¿Cuál es el sistema de los seres vivos que se ocupa de mantener el equilibrio de las sustancias en su cuerpo? por favor que alguien me ayude gracias :)

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.