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- 1. Multiple Choice
What is another word that can be used to describe "homeostasis"?
BALANCE
EQUAL
COMPLETE
CORRECT
- 2. Multiple Choice
When a threatening situation appears, what is the name of the instinctive mechanism used by animals to protect themselves?
Flight or Run
Hide and Seek
Fight or Flight
Run and Fight
- 3. Multiple Choice
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
- 4. Multiple Choice
Most bacteria that make humans sick grow best at 98.6oF. Sometimes a fever is the body's response to the bacteria. What is the reason for developing a fever?
To lower the temperature of the body to kill the bacteria
To increase the temperature of the body to kill the bacteria
To allow the bacteria to take over
To make you feel miserable
- 5. Multiple Choice
Is light an internal or external stimulus?
Internal
External
- 6. Multiple Choice
The "effect" of a given stimulus is the...
response
stimulus
cause
result
- 7. Multiple Choice
The "cause" for something to happen is the
response
effect
stimulus
homeostasis
- 8. Multiple Choice
The term for plant growth in response to sunlight is --
Geotropism
Phototropism
Thigmotropism
Hydrotropism
- 9. Multiple Choice
What does this picture represent?
Thigmotropism
Phototropism
Hydrotropism
Geotropism
- 10. Multiple Choice
A person has recently eaten some spoiled food. Later they begin to vomit. This vomiting action is primarily a response by the body to --
kill the harmful substance in the spoiled food.
let the person know not to eat spoiled food.
try to rid the body of the harmful substance in the spoiled food.
increase the fluid level of the body system.
- 11. Multiple Choice
Pollen in the air from plants enters a person's nose. The pollen causes the person to sneeze and have a runny nose. Which of the following BEST explains why the body responds this way?
to keep pollen away form other people
to destroy toxins contained in pollen
to kill bacteria that live on pollen
to force pollen to leave the body
- 12. Multiple Choice
Which stimulus is most likely to cause a cat to respond by increasing the internal body temperature above the normal level?
Long exposure to cold external temperatures
Digestion of food occurring in the stomach
A viral infection of the cells in the lungs
An increased heart rate after running
- 13. Multiple Choice
What internal stimulus would cause the plant to respond as depicted in the picture?
Exposure to too much sunlight
Exposure to very little sunlight
Increased turgor pressure
Being flaccid due to decreased turgor pressure
- 14. Multiple Choice
As the season turns to winter, what is the most likely response an animal's body has to the changing season?
The animal stores more fat to maintain body heat and provide nutrition when there may not be prey.
The animal produces less fur and sheds more fur to help the animal move faster when finding shelter.
The animal runs more and eats less food to stay warm.
- 15. Multiple Choice
Which of the following is an example of an internal stimulus and response?
Petting a dog and he wags his tail
Touching the dog's food and he growls
Petting newborn puppies and the mother growls
Stomach virus causes the dog to vomit
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