Download Stimulus - Response Notes

Internal and External 7 13 AB.notebook
October 23, 2015
7.13 A,B
External & Internal Stimuli
Internal and External 7 13 AB.notebook
October 23, 2015
Internal and External 7 13 AB.notebook
October 23, 2015
Your body likes to stay in balance (homeostasis).
When you are out of balance your body's systems will work together to bring you back into balance.
Internal and External 7 13 AB.notebook
October 23, 2015
External Stimuli­ occurs outside the organism
Stimulus
Response when it's hot outside go in or seek shade What's a common RESPONSE?
feeling cold in class put on a jacket; What's a common RESPONSE?
seeing a spider scream:), run away
What's a common RESPONSE?
Bright outside
squint/close eyes
What's a common RESPONSE?
What's a common RESPONSE?
see something gross cringe; gag
see stranger danger
run away, hide
What's a common RESPONSE?
Internal Stimuli­ occurs from INSIDE organism itself (Ex. fever, vomiting, watery eyes, sneeze, wilting plant)
Stimulus
Response get a virus What's a common RESPONSE?
fever, vomiting
eat rotten food
What's a common RESPONSE?
stomach cramps
What's a common RESPONSE?
body dehydrated
What's a common RESPONSE?
not enough sleep
What's a common RESPONSE?
plant not watered
less growth, wilting
What's a common RESPONSE?
vomiting, diarrhea pain, less activity
thirst
tired
Internal and External 7 13 AB.notebook
October 23, 2015
Living organisms are able to maintain a constant internal balance using processes to adjust to stimuli in the environment. All of the following are examples of internal processes used by living organisms to maintain balance except
7.13 B
A the fluid in the inner ear canals detecting sensations of movement
B the pupil of the eye shrinking in bright light, and getting larger in dim light
C sweating when body temperature rises
D turning on a fan
Answer: D
Which of the following is NOT correct
7.12 D
about the cytoplasm within cells?
A It helps dissolve cellular wastes.
B It appears as a gel­like liquid water surrounding the organelles in the cell.
C It holds components that help move materials around the cell.
D It is only found in animal cells.
Answer: D
Internal and External 7 13 AB.notebook
October 23, 2015
A scavenger eats a diseased, rotting 7.13 B
animal. After eating the animal, the scavenger feels sick and nauseated. This feeling of nausea is an —
A external stimulus telling the scavenger to eat only plants in the future.
B external stimulus telling the scavenger to never eat diseased animals again.
C internal stimulus telling the scavenger to tolerate the sick feelings.
D internal stimulus telling the scavenger to get rid of food that is dangerous for it.
Answer: D
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