Stimulus

something that causes a response is called a

• response

• stimulus

• touch

• survival

What type of stimuli originate in the environment around an organism?

• external

• internal

How an organism reacts to internal or external stimuli...

• geotropism

• homeostasis

• response

• photosynthesis

the body's ability to regulate its inner environment in response to changes in the outside environment is called...

• phototropism

• homeostasis

• response

• warm

An example of an internal stimuli would be...

• A rabbit sees a fox is about to attack

• A rabbit is hungry

• A rabbit hears a shotgun go off

An example of an external stimulus would be...

• You want a drink of water

• You are hungry

• You feel nauseated

• You get cold when you walk outside

Identify the stimulus....."Birds flock to shelter when it starts to hail outside

• Birds flock to shelter

• It starts to hail outside

When an animal is lacking hydration (water), it responds by -

• feeling hungry

• blinking rapidly

• sweating excessively

• feeling thirsty

What is the internal stimulus that most likely causes the bear to catch the fish?

• protection
• thirst
• anger
• hunger

The body's ability to keep the internal balance of the body stable 

• Homeostasis 
• motion
• geotropism
• phototropism