FEEDBACK SYSTEMS/ANATOMY

If the environment gets cold, we will often shiver in order to:

• keep body temperature the same as the external temperature
• decrease body temperature
• increase body temperature
• regulate blood pressure

What type of feedback loop is shown?

• negative
• neutral 
• positive

Negative Feedback Loops:

• amplify processes
• reverses the original stimulus

• are initiated during childbirth
• are found only in plants

The two types of feedback systems that help organisms maintain homeostasis are:

• positive and negative 
• receptor and effector
• static and dynamic
• minor and major

Maintaining body temperature is an example of a:

• negative feedback loop
• positive feedback loop

In a positive feedback loop, each action creates a consequence that _____________________ the original stimulus

• decreases

• has no effect on

• reinforces

In a negative feedback loop, each action creates a consequence that _____________________ the original stimulus.

• reverses

• has no effect on

• amplifies

Homeostasis is:

• keep everything exactly the same.

• usually operate by positive feedback systems.

• act to keep the internal environmental conditions outside the normal range

• the ability to maintain a relatively stable internal environment

Which type of feedback system is more common in maintaining homeostasis?

• positive

• negative

• neutral

• balanced

It transmits signals to the control center when a change is detected

• control center

• effector

• response

• sensor/receptor