B. Subgroups
<span>When constructing a dichotomous key, the first step is to look at the group of objects or organisms and separate them into two groups based on a single distinguishing characteristic. Then continue to separate each of the groups until each object has its own separate set of characteristics.</span>
When a cell divides into two cells going through 4 phases.
B. DNA->RNA->Protein->Trait
The RNA uses transcription to copy the base pairs in the DNA. The messenger RNA then takes it to the ribosome which makes a protein with the information
<span>This is invalidate, because the amount of energy should stay constant.</span>
