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- 1. Multiple Choice
During child birth a woman's body over produces a hormone called oxytocin until the baby is born. What kind of feedback loop would this be?
Negative Feedback Loop
Positive Feedback Loop
Neutral Feedback Loop
Linear Feedback Loop
- 2. Multiple Choice
When you are hot, your body sweats to cool you down. This means your temperature went above normal and your body sweats to counteract that change to bring you back to normal. What kind of feedback loop would this be?
Negative Feedback Loop
Positive Feedback Loop
Neutral Feedback Loop
Linear Feedback Loop
- 3. Multiple Choice
The 4 parts of the communication pathway to maintain homeostasis listed in order are:
target, sensors, control center, communication system
communication system, sensors, target, control center
receptors, control center, communication system, target
target, control center, sensors, communication system
- 4. Multiple Choice
These detect changes in the environment
Control Center
Sensors
Communication System
Target
- 5. Multiple Choice
This takes the messages from the sensors and is known as the control center
Brain
Kidney
Liver
Heart
- 6. Multiple Choice
Messages from the brain are sent to either the nervous system (muscles) or the endocrine system (hormones), what are they referred to as?
sensors
target
Communication System
Control Center
- 7. Multiple Choice
This responds to messages from the communication system and changes its level of activity to help you maintain homeostasis?
sensors
target organ or muscle
communication system
brain
- 8. Multiple Choice
Osmoregulation means....
maintain water levels
maintain temperature
maintain heart rate
maintain breathing
- 9. Multiple Choice
Thermoregulation means?
Maintain temperature
Maintain water levels
Maintain heart rate
Maintain breathing
- 10. Multiple Choice
When you are hot you....
sweat
shiver
get goosebumps
hairs stand up on arm
- 11. Multiple Choice
When you are cold you...
shiver to create heat
sweat
blood vessels dilate
increase heart rate
- 12. Multiple Choice
Positive Feedback loops are...
Counteract changes that move above or below set values.
more common
regulate body temp
Purposeful pushes above normal set values.
- 13. Multiple Choice
Negative Feedback loops are...
Purposeful pushes above normal set values.
Counteract a change to bring it back to normal set values
Are rare
Help with childbirth
- 14. Multiple Choice
In the homeostasis web-quest, you saw a picture of a nerve cell as shown. Why does a nerve cell look different from a circular red blood cell?
There is no connection between shape and function
Cells all look exactly the same
Cells are shaped differently according to their function. A nerve cell needs long arms for communication.
All cells have the same exact job
- 15. Multiple Choice
Maintaining internal stable conditions is the definition of...
Hypertonic
Hypotonic
Homeostasis
Heterotroph
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