Which characteristic of bones is often very different from one individual to another? a. the number of bones
b. the cellular make up of the bones
c. the size of the bones
d. the composition of the bones

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