Benchmark 2 Review

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

Tags

NGSS.HS-LS1-3

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

Tags

NGSS.HS-LS1-3

Homeostasis in the human body is more often maintained by a:

• neutral feedback loop

• solar feedback loop

• positive feedback loop

• 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 

Tags

NGSS.HS-LS1-3

Which diagram represents an organ?

• #1
• #2
• #3
• #4

Tags

NGSS.HS-LS1-2

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

NGSS.HS-LS1-2

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

The heart is an example of a(n) _________.

• Organ system
• Organ
• Organism
• Tissue

Tags

NGSS.HS-LS1-2

The circulatory (cardiovascular) system is an example of a(n) _______.

• Organism
• Organ system
• Organ
• Cell

Tags

NGSS.HS-LS1-2

A peach tree is an example of a(n) __________.

• Organ
• Organ system
• Tissue
• Organism

Tags

NGSS.HS-LS1-2