Feedback Loops

Feedback Loops

20 Qs

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Feedback loops homeostasis

Feedback loops homeostasis

Biology Positive and Negative Feedback Loops

Biology Positive and Negative Feedback Loops

Feedback Loops Fast

Feedback Loops Fast

Positive and Negative Feedback

Positive and Negative Feedback

Positive vs Negative Feedback Loops

Positive vs Negative Feedback Loops

Positive vs Negative Feedback

Positive vs Negative Feedback

Feedback Loops

Feedback Loops

Assessment

Quiz

Practice Problem

Hard

Created by

Sarah Jernigan

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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the environment gets cold, we will often shiver in order to:

keep body temperature the same as the external temperature
decrease body temperature
increase body temperature
regulate blood pressure

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What type of feedback loop is shown?

negative
neutral 
positive

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The two types of feedback systems that help organisms maintain homeostasis are:

positive and negative 
receptor and effector
static and dynamic
minor and major

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

As the Earth warms, increased evaporation produces more clouds. Clouds increase albedo, reflecting more light away from the Earth. The temperature falls. Rates of evaporation fall.

Positive Feedback Loop

Negative Feedback Loop

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

As the Earth warms, ice cover melts, exposing soil or water. Albedo decreases. More energy is absorbed by the Earth’s surface. Global temperature rises. More ice melts.

Positive Feedback Loop

Negative Feedback Loop

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a negative feedback loop, each action creates a consequence that _____________________ the other action.

decreases

has no effect on

amplifies

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Does the graph show positive or negative feedback?

Positive, because when the red line shifts, the blue one does also

Negative, because the blue line starts below equilibrium

Negative, because the two actions are keeping each other near equilibrium

Both positive and negative because the graph moves up and down

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