What is the smallest classification group?

Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z

What is the next step in muscle contraction after the actin changes shape? (apex)

How are proteins and nucleic acids related? they both provide energy. they both carry genetic information. the structure of proteins is determined by nucleic acids. the subunits of nucleic acids are also the subunits of proteins.