Why comparing and contrasting results are important parts of the scientific process?

d

explanation:

a- all cells come from pre-existing cells

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."

ok yes, but what is the question? as soon as you ask the actual question i will answer it. : )