The first stage of respiration takes place in the cytoplasm, which is the of the cell. In this first stage, glucose is broken down and no oxygen is used in the process. Explain why very little energy is being produced in the first stage

The basic repeating unit of nucleic acids are known as nucleotides. a nucleotide consists of three distinct chemical groups.

Your answer is going to be b.

Many archeologists and anthropologists disagree with dr. thorne's view.  thorne strongly believes that what many calls "homo erectus"  was in fact  homo sapiens,  and that they migrated out of africa almost 2 million years ago and dispersed throughout europe and asia. that's way different  from what scientists have always believed about the evolution of the species.