In
blood is composed largely of water, which helps to transport
nutrients and gases.

PLASMA

Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in.

hope this helps

Plasma

Explanation:

Plasma is usually given to trauma, burn and shock patients. It helps boost the patient's blood volume, which can prevent shock, and helps with blood clotting. It is also the single largest component of human blood, comprising about 55 percent, and contains water, salts, enzymes, antibodies and other proteins.

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.

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.