Will give brainliest, and 10 points! you must know for sure thou!

which of the following is used as evidence in supporting the idea that life changes over time?

a. the time period in which an embryo develops

b. the similarities in the body systems such as the endocrine and nervous systems

c. the existence of vestigial structures

d. the big bang theory

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.