We might conclude that Joe is more Muscular.
If we're talking about the amount of the hits , it simply come down to technique and concentration.
But if we're talking about distance ( especially if there is a huge difference) It's very likely that it because of the difference in strength. All professional baseball player have a solid upperbody and core strength
When cyclic AMP phosphodiesterase is inhibited in a muscle that is stimulated by epinephrine,there will be a crucial effect of making the phosphorylase kinase to remain active,this active state of the phosphorylase kinase is because the associated protein kinase A will not be deactivated any longer.
Epinephrine signaling pathway has varying steps,but the preceding step occurs when the associating hormone binds to the receptor of the epinephrine in the cell surface,the receptor then changes shape when the hormone triggers it,this makes the receptor to move to it's active form. GDP( guanosine diphosphate) is released after the G protein ( guanine nucleotide-binding proteins) binds to the receptor that is activated,the G protein then takes up a molecule of GTP (guanosine triphosphate) .
Answer:
the body would usually fight both the vaccine (while the vaccine is also fighting the virus)and bacteria in body