Acertain cell cannot get the amount of oxygen and nutrients that it needs into the cell. it is possible that the surface-area-to-volume ratio is
1) not changing quickly enough
2) too high
3) changing to quickly
4) too low

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.