1: Which gas is needed for respiration?

Water vapour
Carbon dioxide
Oxygen
Nitrogen

2: Which organ system do the kidneys belong to?

Breathing system
Circulatory system
Urinary system
Digestive system

3: Which organ is part of the circulatory system?

Heart
Lungs
Stomach
Kidneys

4: Which basic life process happens all the time in every living cell?

Movement
Respiration
Reproduction
Sensitivity

5: Plants use energy from sunlight to make their own food. What two substances do they need to do this?

Water and carbon dioxide
Minerals and water
Oxygen and water
Oxygen and carbon dioxide

6: Name two waste products that a human has to excrete

Carbon dioxide and urea
Oxygen and urea
Carbon dioxide and oxygen
Carbon dioxide and nitrogen

7: Where are the nutrients from digested food absorbed?

Lungs
Kidneys
Intestine
Stomach

8: Which characteristic of life does a computer virus have?

Excretion
Reproduction
Digestion
Respiration

9: Which of these organs releases hormones into the blood?

Kidneys
Heart
Lungs
Pituitary gland

10: Which basic life process is a doctor testing when she shines a torch into her patient's eye?

Sensitivity
Excretion
Movement
Respiration