9) The human body contains many different types of glands; glands that secrete digestive enzymes, mucus, and sweat.
These secretions are modified, sorted, and packaged for later release from gland cells.
A)
B)
RNA core in a carbohydrate envelope. C)
nucleus surrounded by a protein coat. D)
plasmid of DNA surrounded by a capsid.
RNA or DNA core surrounded by a protein coat.

yes? sounds right, but you didn’t ask a question.

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.