Feedback Loops, error and bias

The following is an example of what type of feedback loop?

• Negative Feedback Loop

• Neutral Feedback Loop

• Positive Feedback Loop

• Global Warming Feedback Loop

The following is an example of what type of feedback loop?

• Negative Feedback Loop
• Neutral Feedback Loop
• Positive Feedback Loop
• Animal Feedback Loop

If the calcium in your blood decreases below homeostasis levels, a gland in the brain will sense the decrease and send a chemical message to your bones. Your bones will release calcium into the blood, bringing blood calcium levels back up.

• Positive Feedback Response
• Negative Feedback Loop 

What is another word that can be used to describe "homeostasis"?

• STABLE
• EQUAL
• COMPLETE
• CORRECT

If the environment gets cold, we will often shiver in order to increase body temperature. Is this an example of a positive or negative feedback loop?

• positive feedback loop

• negative feedback loop

Rapid growth during puberty causes your body to release more and more growth hormones. As you grow, more and more growth hormones are released until puberty is reached, and then the hormones stop.

• Positive Feedback Response
• Negative Feedback Loop 

Warmer temperatures cause an increased amount of water vapor and rain. Increased rainfall causes an increase in plant growth on Earth, which in turn could removes more carbon dioxide from the atmosphere. Less carbon dioxide in the air reduces global temperatures.

Identify the stimulus in this scenario from the list below.

• Increase in plant growth on Earth

• Higher levels of carbon dioxide being removed from the atmosphere

• Warm temperatures

• Reduction in global temperatures

Match the vocabulary word with this definition:

"The outcome causes the stimulus to be amplified"

• positive feedback

• negative feedback

• response

• stimulus

Match the vocabulary word with this definition:

"The outcome causes the stimulus to be counteracted and stabalized"

• positive feedback

• negative feedback

• response

• stimulus

When it doesn’t rain, the ground and plants dry out. With less water to evaporate during the long days of summer heat, the landscape gets hotter. Hotter temperatures accelerate evaporation, drying everything out even more.

Identify a response from this feedback scenario.

• Low levels of precipitation

• No rain

• evaporation accelerates

• formation of rain forests