Human Biology

In the nutrition activity, you looked at the nutritional information found on food. What are calories a measure of?

• Sugar

• Carbs

• Energy

• Protein

In the digestion activity, you ate a cracker. Is saliva breaking down food an example of mechanical or chemical digestion?

• Mechanical

• Chemical

• Both

• Neither

In the digestion activity, you ate a cracker. Is chewing food an example of mechanical or chemical digestion?

• Mechanical

• Chemical

• Both

• Neither

In the Heart Rate Lab, you tested the effect of exercise on heart rate. What was the independent variable?

• Resting vs. Exercise

• Heart Rate

• Blood Pressure

• Type of Exercise

In the Heart Rate Lab, you tested the effect of exercise on heart rate. What was the dependent variable?

• Resting vs. Exercise

• Heart Rate

• Blood Pressure

• Type of Exercise

Which body system breaks down food into small molecules to be used by body cells?

• The Skeletal System

• The Muscular System

• The Circulatory System

• The Digestive System

Tags

NGSS.MS-LS1-7

Which body system works to transport blood throughout the body?

• The Skeletal System

• The Muscular System

• The Circulatory System

• The Digestive System

Which body system protects the internal organs and provides a framework for the body?

• The Skeletal System

• The Muscular System

• The Circulatory System

• The Digestive System

Which body system enables movement of the body and internal organs?

• The Skeletal System

• The Muscular System

• The Circulatory System

• The Digestive System