Human Body Systems and Functions

Which system is primarily responsible for transporting blood, oxygen, and nutrients throughout the body?

• Digestive System

• Circulatory System

• Respiratory System

• Muscular System

Which system breaks down food into nutrients the body can use and eliminates waste?

• Nervous System

• Immune System

• Digestive System

• Integumentary System

Which system brings oxygen into the body and removes carbon dioxide?

• Respiratory System

• Muscular System

• Skeletal System

• Endocrine System

Which system sends messages throughout the body to coordinate actions and responses?

• Circulatory System

• Endocrine System

• Nervous System

• Immune System

Which system covers and protects the body from external harm while also helping regulate body temperature?

• Integumentary system
• Skeletal system
• Circulatory system
• Nervous system

Which type of feedback loop reduces or reverses a change in the body to normal (for example, regulating body temperature)?

• Static feedback loop
• Negative feedback loop
• Positive feedback loop
• Dynamic feedback loop

Tags

NGSS.HS-LS1-3

Insulin is a hormone that primarily helps regulate which of the following?

• Blood pressure levels
• Cholesterol levels
• Heart rate
• Blood glucose levels

Tags

NGSS.HS-LS1-3

What term describes the body’s ability to maintain a stable internal environment?

• Equilibrium
• Homeostasis
• Stability
• Adaptation

Tags

NGSS.HS-LS1-3

Which statement is true about viruses (compared to bacteria)?

• Viruses cannot reproduce on their own and require a host cell.
• Bacteria are always harmful to humans.
• Viruses can reproduce independently without a host.
• Viruses are larger than bacteria and can be seen with a light microscope.

Which biomolecule primarily provides the body with a quick source of energy?

• Fats
• Carbohydrates
• Nucleic acids
• Proteins