Clusters of cells located near the carotid artery in the neck sense the amount of oxygen in the blood. if the level is too low, these arteries send signals to the brain that result in an increased breathing rate, which brings more oxygen into the body. this is an example of which of the following? negative feedback to amplify small signals negative feedback to maintain homeostasis positive feedback to maintain homeostasis positive feedback to amplify small signals

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

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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.