Grade 9 Natural Sciences fill-in

The ________ _________ process takes place at the lungs where carbon dioxide leaves the blood and oxygen enters the blood.

The heart contains ________ chambers that receive and send blood to all parts of the body.

The ______ _______ carry blood throughout the body.

The respiratory system is responsible for supplying the body's cells with ________ and for removing _________.

Gaseous exchange takes place at two locations by a process called ___________.

_______ __________ occurs within the mitochondria of cells to release the chemical energy in food.

The digestive system is made up of the different parts of the ________ canal.

The large intestine is also called the ________.

__________ is the process of passing out unwanted particles that travel through the digestive tract as faeces.

The digestive system is sometimes also referred to as the _________________.