BIO11 Body Systems - Organisation, Respiratory & Circulatory

Which of the following is the smallest unit of life?

• Tissues

• Organs

• Cells

• Organ systems

Which of the following is an example of a tissue?

• Heart

• Brain

• Muscle

• Lungs

What is an organ system?

• A group of organs working together to perform a specific function

• A group of cells working together to perform a specific function

• A group of tissues working together to perform a specific function

• A group of organisms working together to perform a specific function

What is an example of an organ system?

• Respiratory system

• Nervous system

• Digestive system

• All of the above

Which of the following is the highest level of organisation in living things?

• Cells

• Tissues

• Organs

• Organisms

The ____________ system is responsible for the exchange of gases between the body and the environment.

The _____________ is the primary organ of the respiratory system responsible for the exchange of gases between the body and the environment.

During inhalation, air enters the body through the __________ and travels down the trachea to the lungs.

The main organ of the circulatory system is the __________.

The circulatory system is responsible for __________ oxygen and nutrients to the body's cells.