Question

drag the elements of the feedback loop into the proper positions on the diagram.
show instructions
effectors
set point
integrative center
sensor
compares variable to
measures variable
adjust variable

Explanation:

1. The "measures variable" box is for the component that detects the variable, which is the Sensor.
2. The "compares variable to" box needs the Integrative center (which compares the measured variable to the Set point, so the top blank here is Integrative center and the bottom is Set point? Wait, no—wait, the integrative center compares the sensor's input (variable) to the set point. So the "compares variable to" box: top is Integrative center, bottom is Set point? Wait, no, let's recall feedback loops. Sensor measures variable, sends to Integrative center, which compares to Set point, then sends to Effectors to adjust variable.

So:

• "measures variable": Sensor (because sensor detects/measures the physiological variable)
• "compares variable to": Integrative center (top) and Set point (bottom) (integrative center compares the measured variable to the set point)
• "adjust variable": Effectors (effectors are the organs/muscles/glands that adjust the variable to bring it to set point)

Wait, the diagram has three boxes:

1. Bottom left: "measures variable" → Sensor (since sensor measures the variable)
2. Top middle: "compares variable to" → Integrative center (top) and Set point (bottom) (integrative center takes the sensor's input and compares it to the set point)
3. Bottom right: "adjust variable" → Effectors (effectors act to adjust the variable)

So filling:

• "measures variable" box: Sensor
• "compares variable to" box (top): Integrative center; (bottom): Set point
• "adjust variable" box: Effectors

Answer:

• "measures variable" box: Sensor
• "compares variable to" (top): Integrative center; (bottom): Set point
• "adjust variable" box: Effectors

(To place them: Drag "Sensor" to "measures variable" box, "Integrative center" to top of "compares variable to" box, "Set point" to bottom of "compares variable to" box, "Effectors" to "adjust variable" box.)