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- 1. Multiple Choice
Which of the following describes homeostasis?
keeps variables exactly at the set point
an organism's ability to maintain steady (stable) internal conditions
acts to keep values outside of a desired range
operates through positive feedback
- 2. Multiple Choice
This body system controls and coordinates all body activities through electric impulses/messages between the brain, the spinal cord, and the nerves.
endocrine system
nervous system
nerve
neuron
- 3. Multiple Choice
This body system controls growth and homeostasis by secreting hormones from glands.
skeletal system
nervous system
endocrine system
integumentary system
- 4. Multiple Choice
The group of organisms that maintain homeostasis
mammals, only
animals, only
plants and animals
all living things
- 5. Multiple Choice
A change inside of the organism that moves away from the normal level/condition
response
effector
control center
stimulus
- 6. Multiple Choice
Which part of the homeostasis circuit is a body part/organ that makes a change to bring the system back to homeostasis?
Effector
control center
response
receptor
- 7. Multiple Choice
What part of the circuit detects that the system is outside of homeostasis and decides on the adjustments that need to be made?
effector
response
control center
stimulus
- 8. Multiple Choice
The body part that senses the change inside the organism ...
receptor
control center
effector
response
- 9. Multiple Choice
What part of the homeostasis circuit is the result of the effector's action (brings the organism back to homeostasis)?
stimulus
Response
Receptor
Effector
- 10. Multiple Choice
Identify the stimulus in the example below.
Scenario: A person begins to exercise which causes their body temperature to increase. The temperature change is noticed and the person begins to sweat and their body temperature decreases.
body temperature increases
the person begins to sweat
the temperature change is noticed
the person begins to exercise
- 11. Multiple Choice
Identify the response that restores homeostasis in the example below.
Scenario: A person begins to exercise which causes their body temperature to increase. The temperature change is noticed (sensed) and the person begins to sweat and their body temperature decreases.
temperature change is noticed
a person begins to exercise
body temperature increases
the person sweats (body temperature decreases)
- 12. Multiple Choice
Which part of the circuit is responsible for sensing the temperature change in the example below?
Scenario: A person begins to exercise which causes their body temperature to increase. The temperature change is noticed (sensed) and the person begins to sweat and their body temperature decreases.
control center - sweat glands
receptor - sweat
control center - hypothalamus (part of the brain)
receptor - brain and skin receptors
- 13. Multiple Choice
Which of the following resources are NOT needed by ANIMALS to help them maintain homeostasis?
oxygen
water
food
carbon dioxide
- 14. Multiple Choice
Which of the following resources are NOT needed by PLANTS to help them maintain homeostasis?
light
water
rocks
carbon dioxide
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