Which classification category contains the most closely related organisms?

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

How much time has elapsed from the very beginning of "the memior of the conquistador bernal diaz del castillo" to the end? a. castillo's whole life b. a quarter of an hour c. a few weeks d. a decade

What do we call an individual that has inherited two identical alleles for the same trait? a. homozygous b. heterozygous c. monozzygous