When you have completed this section, you should be able to a. state the characteristics that distinguish living organisms from nonliving objects;b. explain the importance of physiological variation among persons;c. define homeostasis and explain why this concept is central to physiology;d. define negative feedback, give an example of it, and explain its importance to homeostasis;e. define positive feedback and give examples of its beneficial and harmful effects; andf. define gradient, describe the variety of gradients in human physiology, and identify some forms of matter andenergy that flow down gradients.

Can someone help with this flow chart part of my lab? Please help me understand the Negative Feedback. Thank you.

The respiratory system is capable of absorbing oxygen and excreting carbon dioxide. The digestive system absorbs nutrients from the diet and excrete indigestible material including wastes. Likewise, the urinary system is capable of absorbing and excreting water and electrolytes according to the needs of the body. These functions may appear to be distinct and separate from each other, but the systems are so organized that they are interdependent on each other and together contribute to the welfare of the body by keeping it in balance or in a state of homeostasis. Create a concept map that illustrates the physiology of acid base balance that unites the three systems (Respiratory, Digestive and Urinary systems) together.

which of the following situations illustrates that a homeostatic mechanism is not operating properly? a. acute high blood pressure b. normalized blood glucose levels c. dailt fluid intake equals dailty fluid output  d. all of these illustrate homestatic mechanisms operating properly

Why does homeostasis normally involve negative feedback loops rather than positive feedback loops? Provide an example of each.