Identify the process used to form the covalent peptide bonds that join amino acids into a polypeptide

Condensation

Explanation:

A single molecule of protein can have hundreds of amino acid units which are joined together by the process of condensation. The process involves combination of two amino acids to form a dipeptide molecule. The bond between the two amino acids is called a peptide bond. Continued condensation leads to the addition of more amino acids to a protein chain. A long chain known as a polypeptide results.

it is prolly d and c and f

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.