Which of the following statements describes how you would classify figure 28.2 as a negative feedback loop?
a
the control center counteracts change from a set point.
b
the sensors notice an increase away from a set point.
c
nerves and hormones carry messages to target organs.
d
a target organ receives and responds to a message.

the answer is a. When the heart rate is too high, the body sends hormones that continually increase the heart rate higher.

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."