4th Six Weeks Review

Any change in an organism’s environment that causes to the organism to react is the definition of ...

• a stimulus

• a learned behavior

• an instinct

• homeostasis

How the organism reacts to a stimulus. It is a change in behavior is the definition of

• a response

• a stimulus

• homeostasis

• migration

A stimulus that comes from INSIDE an organism is

• an external stimulus

• an internal stimulus

An example of a reflex action includes

• Touching a butterfly

• Brushing your hand against the side of your body

• Touching a hot stove

• Your legs moving as you walk

________ energy is stored energy. Stored chemically in fuel, the nucleus of atom, and in foods.

• Thermal

• Mechanical

• Kinetic

• Potential

Automatic responses to some stimuli such as pain are called reflexes

• True

• False

What type of stimulus is a loud fire alarm?

• Internal

• External

• Learned

• Instinct

Jackson is around his friend who is constantly sick. Jackson begins coughing and sneezing the next day at school. What is the possible stimulus and response?

• Internal stimulus is coughing, the response is getting sick
• External stimulus is coughing, the response is getting sick
• Internal stimulus is germs/bacteria, the response is coughing
• External stimulus is germs/bacteria, the response is coughing

Identify the stimulus..."A loud noise causes you to cover your ears"

• A loud noise

• You cover your ears

Define response.

• Change in an organism’s environment that causes it to react.

• How the organism reacts to the stimulus.