Homeostasis

What is mean by homeostasis?

• Controls and coordinates body activities through chemical 
• controls and coordinates body activities through electrical impulses
• For maintenance of a steady state in the internal environment
• remove metabolic waste products from the cel

Tags

NGSS.HS-LS1-3

What transports substances around the body?

• Blood
• Sweat
• Tears
• Urine

What is involuntary contractions of voluntary muscles to warm up?

• Shivering
• Sweating
• Vasodilation
• Vasoconstriction

Tags

NGSS.HS-LS1-3

Positive feedback is when the change caused by the stimulus is

• decreased
• non existant
• increased
• changes constantly

Tags

NGSS.HS-LS1-3

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.  

• Positive Feedback Response
• Negative Feedback Loop 

Tags

NGSS.HS-LS1-3

When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.

• Positive Feedback Response
• Negative Feedback Loop 

Tags

NGSS.HS-LS1-3

Which diagram represents an organ?

• #1
• #2
• #3
• #4

Tags

NGSS.HS-LS1-2

Which of the following is the basic unit of structure and function in living things?

• Cells

• Tissues

• Organs

• Organ Systems

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

In _________ feedback, the change is BAD and needs to be corrected.

• Positive

• Negative

Tags

NGSS.HS-LS1-3

In _________ feedback, the change is considered GOOD and should be increased.

• Positive

• Negative