Respiratory, Digestive and Circulatory Systems

Which major body system breaks down food to release nutrients needed for energy production?

• digestive
• muscular
• respiratory
• cardiovascular

Which best describes the circulatory system?

• It protects the major organs of the body.
• It breaks food into nutrients for the body.
• It sends messages to the brain to protect the body.
• It transports oxygen-rich blood throughout the body.

Which best explains the effects of exercise on the respiratory system?

• Exercise increases breathing rate which makes the lungs stronger.
• Exercise increases breathing rate which makes the bones stronger.
• Exercise decreases breathing rate which sends more oxygen to the brain.
• Exercise decreases breathing rate which produces more wastes for the kidneys to process.

Which best describes the system that provides transportation for cell necessities using the bloodstream?

• muscular system
• circulatory system
• respiratory system
• cardiovascular system

Which two human body systems work closely together to distribute nutrients from food throughout the body?

• muscular and skeletal
• digestive and circulatory
• circulatory and respiratory
• cardiovascular and digestive

Which best compares the respiratory system to the circulatory system?

• The respiratory system transports oxygen to cells, while the circulatory system provides oxygen for cells.
• The respiratory system provides oxygen for cells, while the circulatory system transports oxygen to cells.
• The respiratory system breaks down food for cell energy, while the circulatory system rids the body of waste.
• The respiratory system rids the body of waste, while the circulatory system breaks down food for cell energy.

Use the diagram to answer the question that follows.
What is the function of the system shown?

• breaks down food into a form used by the body
• carries oxygen and nutrients to all cells of the body
• controls all other systems of the body
• takes air into and out of the body

What body systems controls the movement of nutrients throughout your body?

• circulatory
• digestive
• respiratory
• excretory

Fungi and bacteria are both single-celled organisms. What do they most likely have in common?

• Both fungi and bacteria are large organisms.
• Both fungi and bacteria can carry out all life functions in their one cell.
• Both fungi and bacteria need sunlight and nutrients from the soil to be able to grow.
• Both fungi and bacteria are highly specialized to do only one job so they must work with other cells to obtain food.

Which best compares the respiratory system to the circulatory system?

• The respiratory system transports oxygen to cells, while the circulatory system provides oxygen for cells.
• The respiratory system provides oxygen for cells, while the circulatory system transports oxygen to cells.
• The respiratory system breaks down food for cell energy, while the circulatory system rids the body of waste.
• The respiratory system rids the body of waste, while the circulatory system breaks down food for cell energy.