When testing the ability of liquid soap solution to minimize aphid infestations on tomato plants, the control group should include which of the following

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.

the missing space is phylum

the answer would be   10%