What adaptations do you think humans have evolved throughout Earth's history? How do you think this benefited or harmed us as a species?

True to the fact it is actually false

The 3 steps are vasoconstriction, temporary blockage of a platelet plug, formation of a fibrin clot better known as coagulation.

You should never redesign your experiment. try and see what in your experiment you made a mistake on or try and test your experimemt with somebody else. see if they get the right results.