What is the broadest level of classification in taxonomy?

• Family

• Domain

• Order

• Kingdom

Which organ pumps blood throughout the human body?

• Brain

• Heart

• Liver

• Kidney

What is the main function of the digestive system?

• To pump blood

• To break down food

• To control movement

• To filter waste

Which gas do humans breathe in from the air?

• Carbon dioxide

• Oxygen

• Nitrogen

• Helium

What is the main function of white blood cells in the immune system?

• Carry oxygen

• Fight infections

• Digest food

• Store energy

Which organ is responsible for absorbing most nutrients from digested food?

• Stomach

• Small intestine

• Large intestine

• Esophagus

Which type of muscle is found in the heart?

• Skeletal muscle

• Cardiac muscle

• Smooth muscle

• Voluntary muscle

Which kingdom do mushrooms belong to?

• Animalia

• Plantae

• Fungi

• Protista

What is the name of the tube that carries food from the mouth to the stomach?

• Trachea

• Esophagus

• Bronchi

• Larynx

Which part of the respiratory system is responsible for gas exchange?

• Trachea

• Alveoli

• Bronchi

• Diaphragm