What is the part of endoplasmic reticulum without proteins attached?

Which of the following is not a product of the second stage of glycosis

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations