15. unlike new world monkeys, hominines a. have long fingers and toes. b. have arms that rotate at the shoulder. c. have opposable thumbs. d. have strong clavicles.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."