Muscle cells breakdown glucose to lactic acid and
ATP when
levels are low.

me two

explanation:

because i hate it

the answer is otpion c) understanding

he wants to be heard one more time. he wants to be understood. he needs the truth one more time.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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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.