The symbol of a simple unprefixed si unit has been left off of each measurement in the table below. fill in the missing unit symbols.
themassofaus=penny 2.5
thelengthofa=car 5.
theworldrecordforthe100m=dash 9.6
thevolumeofwaterinatall=glass

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity