B is the answer if not B then C
Jan Ingenhousz discovered photosynthesis
The answer is B.- Upright bipedal walking posture.
Answer:y4e8igtuh5toi4h5ti bw4o5y6to4u56o48wy5
Explanation: imagine getting scammed
Activators and repressors are transcription-control elements that are found in eukaryotic organisms. These elements function during the process of transcription, where a DNA molecule is coded onto a RNA molecule for it to be sent to ribosomes outside of the nucleus and then polypeptide chains are produced from it.
The activators and repressors control which proteins are made, which means that they can either hinder or promote certain functions in the cells of the body. Therefore, even though all of the cells have the same set of DNA, some are able to produce HCl, while others produce other substances such as insulin.