Which of the following is an example of homoplasy?
(a) hair in humans and fur in mice
(b) astragalus ankle bones in hippos and deer
(c) hox genes in humans and flies
(d) streamlined bodies in dolphins and ichthyosaurs

B. astragalus ankle. bones in hippos. and derr

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.