Macromolecules are made of functional groups that give them specific characteristics. What are the functional units of a carbohydrate? (4 points) Alpha helix and beta pleated groups in polysaccharides Amino and R groups in disaccharides Carbonyl and hydroxyl groups in monosaccharides Ketose and aldose groups in disaccharides

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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.