What is the overall reaction for the above mechanism can anyone help me with some questions from chemistry, I really need help​

The grooves or folds of the brain are called

How do dying stars contribute to the formation of planets

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.