Exam 32: Homeostasis and the Organization of the Animal Body

One biological example of a positive feedback system is

_________ epithelium is several cell layers thick and is specialized to withstand wear and tear.

The body temperature of an_________ changes to match the temperature of the external environment.

Glial cells provide structural and chemical support to neurons.

The retina of the eye responds to light, converting it into electrical impulses. The retina is made up of

While working in a forensic lab, you are given a bit of tissue to analyze. It has several layers. The upper surface consists of dead, flattened cells. As you move deeper into the tissue, the cells look healthier. The bottom layer of cells is actively dividing. Under the dividing layer is an acellular protein goo. You identify the sample as__________ tissue.

The blood vessels that provide nourishment for the skin cells are located in the dermis only.)

The basement membrane in epithelial tissue

Together, the stomach, intestines, mouth, and esophagus form a(n)

-The tissue shown in the figure forms

Which tissue is characterized by a basement membrane and a single layer of flattened cells with a free surface?

Hair follicles are a variation of _________ tissue.

Why are negative feedback loops more effective at maintaining homeostasis than positive feedback loops?

For an organism to maintain proper neurological function, sodium and potassium levels must be maintained within narrow ranges. How would the body respond if a person took in excessive amounts of potassium?

While sitting in a hot car, your body begins to sweat, which cools the body back down. This illustrates a_________ feedback loop.