Question

1. part a homeostasis is the condition in which the body maintains _____. a static state with no deviation from preset points a relatively stable internal environment, within limits the lowest possible energy usage a dynamic state within an unlimited range, depending on circumstances 7. part a positive feedback differs from negative feedback because _____. positive feedback is critical to health while negative feedback serves only to alert us to potential health threats positive feedback is generally beneficial while negative feedback is typically harmful positive feedback provides moment - to - moment wellbeing while negative feedback causes a cascade effect positive feedback tends to enhance the triggering stimulus while negative feedback tends to return the body to a homeostatic balance 8. part a positive feedback mechanisms tend to enhance the original stimulus so that the response is accelerated. true false 9. part a without some sort of negative feedback mechanism, it would be impossible to keep our body chemistry in balance. true false

Explanation:

• For question 6, homeostasis is the body's ability to maintain a relatively stable internal environment within certain limits.
• For question 7, positive feedback enhances the triggering stimulus while negative feedback restores homeostasis.
• For question 8, positive - feedback mechanisms indeed enhance the original stimulus to accelerate the response.
• For question 9, negative - feedback mechanisms are crucial for maintaining body chemistry balance.

Answer:

1. a relatively stable internal environment, within limits
2. positive feedback tends to enhance the triggering stimulus while negative feedback tends to return the body to a homeostatic balance
3. True
4. True