At certain times, the blood builds up high levels of carbon dioxide and has low levels of oxygen. Explain how one or more negative feedback loops can affect the alveoli to maintain homeostasis.

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."