An organism that transmits a disease from one organism to another (often by biting) is

a vector

a parasite

a host

i think the miocene epoch spans the time from 23 million to 12 million years ago.

it also supports my hypothesis. if you rest first you can squeeze the clothespin more times. from the data i collected the average of the eight people concluded exercise makes your muscles more fatigued and less able to squeeze the clothespin compared to resting before squeezing.