homeostasis

Homeostasis for living organisms means...

• external environment stays the same when internal changes

• water diffuses through membrane by osmosis

• concentrations move from high to low

• internal environment stays the same when external changes

Identify the initiation event.

Scenario: A person begins to exercise which causes their body temperature to increase. The temperature change is noticed and the person begins to sweat and their body temperature decreases.

• temperature change is noticed

• person begins to sweat

• body temperature decreases

• person begins to exercise

Surface area to volume ratio is important because

• it determines how big a cell can grow to be

• it affects how fast/slow cells can diffuse nutrients & heat

• it determines which enzymes are needed for metabolism

• it determines what kind environment the cell needs to live

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 "cause" for something to happen is the

• response
• effect
• stimulus
• homeostasis

What is the evaporation of a liquid to cool the body?

• Shivering
• Sweating
• Vasodilation
• Vasoconstriction

Which of the following is not regulated by homeostasis?

• body temperature

• blood sugar

• blood pH

• body movements

Homeostasis means that the _____ stays stable while the outside changes

• inside

• outside

• hot

• cold

Match the following characteristics of life

• Growth and Development

• 
• Cells

• 
• Homeostasis

• 
• Reproduction

• 
• Response to Stimuli

• 

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