Stimulus & Response

What is the correct order or organization from smallest (simplest) to largest (most complex)?

• cell, tissue, organ, organ system, organism

• cell, tissue, organ, organism, organ system

• cell, organ, tissue, organ system, organism

• organism, organ system, organ, tissue, cell

When you throw up, hormones in your stomach tell your brain that there is something bad inside your body.  Your brain tells your lymphatic system to surround the "poison" and increase salivation to protect your esophagus.  Your brain then tells your digestive muscles to contract upwards to remove the poison.  Which body systems are involved in this feedback loop?

• Lymphatic, Endocrine, Skeletal, Respiratory

• Endocrine, Nervous, Urinary, Muscular, Digestive

• Endocrine, Nervous, Lymphatic, Digestive, Muscular

• Reproductive, Integumentary, Lymphatic, Digestive

When you throw up, hormones in your stomach tell your brain that there is something bad inside your body.  Your brain tells your lymphatic system to surround the "poison" and increase salivation to protect your esophagus.  Your brain then tells your digestive muscles to contract upwards to remove the poison.  This is an example of...

• Stimulus

• Feedback Loop

• Response to external Stimuli

• Homeostasis

A person with food poisoning feels sick and vomits.  Vomiting is... 

• A stimulus to a response

• A response to an external stimulus

• A response to an internal stimulus

• in homeostasis

When you are scared, you jump, run, or punch.  This is the fight or flight response.  Which feedback loop explains the fight or flight response correctly?

• Nervous system triggers the lymphatic system.  Fluids are transported to the Urinary system.

• Integumentary system alerts the nervous system.  The nervous system tells the reproductive system to make adrenaline.  Adrenaline travels through the lymphatic system to the muscles.

• The Nervous system signals the respiratory system to take in wind to scream.

• The Nervous system tells the endocrine system to release adrenaline.  The circulatory system carries the adrenaline to the muscular system.  Muscles pull the skeletal system away from the stimuli.

A bear appears around a tree right next to you and you run away.  This is an example of a...

• A stimulus to a response

• A response to an external stimulus

• A response to an internal stimulus

• Homeostasis

What type of stimulus is the smell of pizza?

• Internal

• External

Is the stimulus of feeling hungry internal or external?

• Internal

• External

Which is the best response when harmful bacteria enter the body?

• The endocrine system would filter out the bacteria.

• The respiratory system would reduce the exchange of gases to increase the level of carbon dioxide in the blood.

• The nervous system would signal the body to vomit or increase the body temperature.

• The digestive system would release more enzymes to digest the bacteria as food.

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

• Homeostasis 
• motion
• geotropism
• phototropism