Homeostasis

When a threatening situation appears, what is the name of the instinctive mechanism used by animals to protect themselves?

• Flight or Run
• Hide and Seek
• Fight or Flight
• Run and Fight

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

The maintenance of an organism’s internal environment is called:

• compensating
• homeostasis
• balancing
• routine

Name the levels of organization in the human body in order from smallest to largest:

• Tissue, organ, organ system
  
• Organ system, tissue, organs, cells
  
• Cells, tissue, organs, organ system
  
• Cells , organs, tissue, organ system

A deep sleep during which an animal slows down its body processes to save energy is called:

• Estivation
• Migration
• Graduation
• Hibernation

Which of the following is an appropriate response to cold weather?

• sweating
• shivering
• sleeping
• wearing shorts

The shrinking of a plant's leaves due to lack of water is known as:

• shrinking
• extinction
• taxis
• wilting

A stimulus type that occurs within the organisms body is 

• external
• inside
• within
• internal

A stimulus type that occurs outside the organisms body is 

• external
• inside
• within
• internal

What internal stimulus most likely drives a lioness to search for prey?

• hunger
• thirst
• stomachache
• headache