Connect #1

Which of the following statements regarding homeostasis is false? Homeostasis is defined as the existence and maintenance of a relatively constant environment within the body. Sweating is an example of homeostasis. In order to maintain homeostasis, a person's body temperature must remain precisely at its set point. For a cell to function normally, its variables must remain within a normal range.

In order to maintain homeostasis, a person's body temperature must remain precisely at its set point.

Information about the variable is sent to the ________, which compares the value of the variable to the set point.

control center

If a response is necessary, a/an _______ responds, causing an action that maintains homeostasis

effector

caudal

inferior

The change in the shape of tissues or organs is called __________. metabolism differentiation morphogenesis growth reproduction

morphogenesis

A blood clot stimulating even more blood clotting is an example of __________. There is no feedback involved. positive feedback neutral feedback negative feedback metabolism

positive feedback

In the first step of negative feedback, the ______ monitors the value of a variable.

receptor

Homeostasis involves maintaining body functions near a/an _____, which is the ideal normal value for that component.

set point

cephalic

superior

Knowledge of the structure of body parts helps us to understand their function. Which of the following is an accurate example of that principle? Negative feedback is not homeostatic. The basic structural unit of the body is the cell. Each tissue type is composed of cells that have a similar structure and function. The internal environment of the body is maintained in a relatively stable condition. Moveable joints allow us to bend our fingers to perform many different actions.

Moveable joints allow us to bend our fingers to perform many different actions.

Consider the following structural levels: chemical, organ, tissue, cell, and organ system. Which level encompasses the other four? Organ system Tissue Cell Chemical Organ

Organ System

Homeostasis is defined as the maintenance of a relatively constant environment within the body. an amplification of deviation from the normal range. the production of energy by cells. a condition in the body that does not involve fluctuation. the combination of growth, self-repair, and energy release.

the maintenance of a relatively constant environment within the body