How do animals breathe?

1. When you inhale your lungs?

• smaller

• expand

• turn purple

• do a dance

1. Insects respire through a system of holes called...

• gas exchange

• spiracles

• carbon dioxide

• tubes

This is what you do when you breathe out the air...

• diaphragm

• lungs

• exhale

• tracheae

1. They absorb oxygen from water and release carbon dioxide into water through the gills...

• spiracles

• air

• blood capillaries

• tracheae

The process in which carbon dioxide moves up the tracheae and exits through the spiracles in insects is called...

• chest cavity

• gas exchange

• oxygen

• inhalation