Homeostasis

The "cause" for something to happen is the

• response
• effect
• stimulus
• homeostasis

What is the stimulus in the blood clotting model?

• Clotting occurs from platelets

• Break or tear in blood vessel wall

• Clotting proceeds until break is sealed by clot

• Released chemicals attract more platelets.

What is the response in the blood clotting model?

• Clotting occurs from platelets

• Break or tear in blood vessel wall

• Clotting proceeds until break is sealed by clot

• Released chemicals attract more platelets.

What type of feedback is shown in the blood clotting model?

• Positive

• Negative

When you are hungry, you eat.

What is the response?

• hunger

• eating

• stomach

• nerves

According to the model, what is a normal blood glucose (sugar) level?

• 270 mg/100mL

• 180 mg/100 mL

• 45 mg/100 mL

• 90 mg/100 mL

According to the model, what is the response to HIGH blood glucose (sugar)?

• Pancreas releases insulin into blood

• Pancreas releases glucagon into blood

According to the model, what is the response to LOW blood glucose (sugar)?

• Pancreas releases insulin into blood

• Pancreas releases glucagon into blood

According to the model, what would happen if the pancreas did NOT detect rising blood glucose (sugar) level?

• Blood sugar would return to normal

• Most body cells would take up more glucose

• Blood sugar would stay above normal

• The liver would get the message to store glucose as glycogen

Homeostasis

• allows for a wildly fluctuating internal environment
• is impossible in vertebrates
• is the maintenance of a relatively stable internal environment

• is the maintenance of a relatively stable external environment