Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

d. The effects of negative feedback loops are amplified to create an escalating response.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

e. Cell-cell communication is required to coordinate the activities of the whole body.

A gradient exists:

a. when heat is concentrated in one area of the body.

b. when more of a substance is located in one place than in another.

c. when there is higher pressure in one place than in another.

d. All of the above are correct.

e. None of the above are correct.

Use the correct regional and directional terms to describe the location of each of the following organs in the body. You may use Figure 1.8 for reference. <IMAGE>

a. Esophagus

b. Brain

c. Urinary bladder (in a female)

Later that same day, the surgeon performs a procedure on Ms. Norman's right kidney. She makes the incision in the right posterior lumbar region. Will she cut through the same serous membrane(s) and cavities as in the previous procedure? Why or why not? How would this change if the incision were made on the anterior lumbar region?

The baroreceptor reflex causes blood pressure to drop when it rises dangerously high. Predict whether this is a positive or negative feedback loop. Explain your reasoning.