Life Systems Quiz

What does the word 'system' mean in the term 'life system'?

• To be alive

• A single body part

• A combination of things that work together

• A type of organism

How many different life systems are there that keep us alive?

• 5

• 11

• 78

• 100,000

Which organ is the main organ of the circulatory system?

• Lungs

• Brain

• Heart

• Skin

Which of the following is true about the human respiratory system?

• It has one lung

• It has two lungs that are exactly the same

• It has two lungs that are not exactly the same

• It has no lungs

What is the purpose of a runny nose when we catch a cold?

• To make us feel uncomfortable

• To help us breathe better

• To flush out germs from our nose

• To absorb more oxygen

What is the primary function of the circulatory system?

• To carry oxygen to the cells and remove waste products

• To produce blood cells

• To digest food

• To control body temperature

What do arteries do in the circulatory system?

• Carry oxygen-depleted blood back to the heart

• Connect arteries to veins

• Carry oxygenated blood away from the heart

• Filter toxins from the blood

What is the role of veins in the circulatory system?

• They carry oxygenated blood away from the heart

• They carry oxygen-depleted blood back to the heart

• They connect arteries to veins

• They filter blood

What is the function of capillaries in the circulatory system?

• They carry oxygenated blood away from the heart

• They carry oxygen-depleted blood back to the heart

• They connect arteries to veins

• They filter blood

What is heart disease?

• A condition where the heart has an irregular shape

• When something is wrong with your heart and it can't pump blood properly

• A type of muscle disease

• A problem with the lungs that affects the heart