Unit 3: Organization and Energy in the Body

Which organ system works with the digestive system to digest and move food through the body? 

• Muscular System 
• Skeletal System
• Nervous System
• Endocrine System 

 A group of cells that work together to perform a similar function is:

• tissue
• organs
• organ systems 
• organisms

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The most basic unit of life and the smallest level of organization is: 

• cell
• tissue
• organs
• bacteria 

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What is mechanical digestion? 

• When food is chemically broken down into usable energy
• When food is broken down by acids and enzymes
• When food is physically broken down into smaller pieces 
• When food is not broken down at all

What is chemical digestion? 

• When food is moved through the digestive system
• When food is physically broken down into smaller pieces 
• When food is not broken down at all
• When food is broken down by acids and enzymes into usable energy 

Which of the following organisms transforms radiant energy into chemical energy?

• Bird
• Dog
• Flower
• Spider 

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Which of the following transforms mechanical energy into thermal energy? 

• A windmill 
• Kicking a soccer ball 
• Placing hands over a lightbulb
• Rubbing your hands together

Which of the following transforms chemical energy into mechanical energy? 

• A flower
• An animal 
• Clouds 
• A pot of boiling water

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Groups of different tissues that work together to carry our a specific task is: 

• tissues
• a cell
• an organ
• an organ system

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Which of the following organ to organ system combinations goes together? 

• Heart in the Circulatory System
• Kidneys in the Respiratory System
• Brain in the Excretory System
• Lungs in the Nervous System