SnapShot #1 Review

Homeostasis

• allows for a wildly fluctuating internal environment

• is impossible in vertebrates

• is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation

When you are cold, you shiver and your blood vessels contract, which warms you up. When you are hot, you sweat and your blood vessels expand, which cools you down.

• False

• True

What is another word that can be used to describe "homeostasis"?

• STABLE
• EQUAL
• COMPLETE
• CORRECT

What is involuntary contractions of voluntary muscles to warm up?

• Shivering
• Sweating
• Vasodilation
• Vasoconstriction

When the body temperature drop below normal ranges, arterioles in the skin will

• dilate to allow less blood to flow to skin surface

• constrict to allow less blood to flow to skin surface

• dilate to allow more blood to flow to skin surface

• constrict to allow more blood to flow to skin surface

Which of the following correctly pairs the hormone and the response that it causes

• Glucagon - makes body cells take in glucose

• Insulin - makes body cells take in glucose

• Pancreas - makes liver release stored glucagon

• Liver - makes pancreas take in stored insulin

diabetes is a disease that affects your body's ability to produce or use ___.

• energy

• insulin

• glucose

• negative feedback

Which body system controls the body to maintain homeostasis?

• excretory

• nervous

• circulatory

• skeletal

chemical made by glands that tell cells to make something or respond in some way.

• acid
• enzyme
• perspiration
• hormone

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