Sewing thread is very thin and difficult to see once a length of thread is removed from its spool. how is the thread and spore an analogy for what happened to the dna in step seven?

a

explanation:

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.

bacterium is not correct