Body Systems and Homeostasis

When you are hot, your body sweats to cool you down. This means your temperature went above normal and your body sweats to counteract that change to bring you back to normal. What kind of feedback loop would this be?

• Negative Feedback Loop

• Positive Feedback Loop

• Neutral Feedback Loop

• Linear Feedback Loop

Tags

NGSS.HS-LS1-3

What is an example of a positive feedback mechanism?

• 
• 

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

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 

These two body systems regulate feedback mechanisms.

• Skeletal & Muscular
• Skeletal & Endocrine
• Muscular & Nervous
• Endocrine & Nervous

Which two systems work together to maintain homeostasis while transporting oxygen throughout the body and removing carbon dioxide?

• circulatory and respiratory

• respiratory and excretory

• circulatory and digestive

• respiratory and digestive

Which of the following are in the correct order?

• organ system, cell, organ, tissue, organism

• cell, organ, tissue, organ system, organism

• cell, tissue, organelle, organ system, organism

• cell, tissue, organ, organ system, organism

Functioning together, the organ systems keep __________________, pH, and other conditions at just the right levels to support life processes.

• temperature
• temptation
• temples
• temporary

Tags

NGSS.HS-LS1-3

Which system secretes hormones that regulate other organs and organ systems?  

• muscular
• nervous 
• respiratory
• endocrine

A stable internal environment

• homeostasis
• homozygous
• heteropathic
• hemoglobin

Tags

NGSS.HS-LS1-3