How does longitudinal binary fission differ from other forms of binary fission? A. It creates four daughter cells instead of two.
B. It creates daughter cells that are mirror images of each other.
C. It only occurs in amoebas and paramecium.
D. Daughter cells are created, but over a longer period of time

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Binary fission, asexual reproduction by a separation of the body into two new bodies. ... Binary fission is the primary method of reproduction of prokaryotic organisms. In protists, binary fission is often differentiated into types, such as transverse or longitudinal, depending on the axis of cell separation.

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.