Breeders use the strategy of to produce offspring with a combination of traits from both parents. Breeders also use the strategy of by mating organisms with similar traits, which ensures that traits are preserved.

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.