The method of protecting an embryo from dehydration is due to the evolution of the

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle

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."