Understanding Feedback Mechanisms

Which type of feedback loop is most common in biological systems?

• Positive feedback

• Negative feedback

• Neutral feedback

• Cyclic feedback

What does negative feedback do to the stimulus?

• Amplifies the stimulus

• Negates or reverses the stimulus

• Ignores the stimulus

• Duplicates the stimulus

Which feedback loop increases the intensity of the stimulus?

• Negative feedback

• Positive feedback

• Neutral feedback

• Balanced feedback

What is the main effect of negative feedback on the stimulus?

• Shuts down the effects of the stimulus

• Makes the stimulus stronger

• Ignores the stimulus

• Multiplies the stimulus

Which feedback loop is less common in biological systems?

• Negative feedback

• Positive feedback

• Cyclic feedback

• Neutral feedback

If a system amplifies the stimulus, which type of feedback is it showing?

• Negative feedback

• Positive feedback

• Neutral feedback

• Cyclic feedback

A thermostat turns off the heater when the room gets too warm. What type of feedback is this an example of?

• Positive feedback

• Negative feedback

• Neutral feedback

• Cyclic feedback

If a process in the body keeps increasing a change instead of stopping it, what kind of feedback is this?

• Negative feedback

• Positive feedback

• Neutral feedback

• Cyclic feedback

Why are most feedback loops in the body negative rather than positive?

• Because negative feedback helps maintain stability

• Because positive feedback is always harmful

• Because negative feedback increases changes

• Because positive feedback is more common

A process shuts down its own effects after reaching a certain point. Which feedback type does this describe?

• Positive feedback

• Negative feedback

• Neutral feedback

• Cyclic feedback