Breaking down food and making energy for our body involves many chemical reactions. which characteristic of life is this related to?

your

growth and development

evolution

reproduction

metabolism

homeostasis

heredity

Metabolism

Explanation: Living things must use energy and consume nutrients to carry out the chemical reactions that sustain life. The sum total of the biochemical reactions occurring in an organism is called its metabolism.

where is the diagram?

if you insert the diagram ill be able to you

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.