Why is Cell Specialization necessary?​

B. If the temperature of a solid is increased, the solid expands and its volume increases.Explanation:

Explanation:

Cells make up organs and organs make up systems and systems make up organisms. Each cell must be able to perform as a part of a living organism. Cell specialization is required for cells to perform as a part of a whole living thing.

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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.