Read each of the sentences that describe a phase of meiosis. Place each sentence into the correct box. Homologous chromosomes pair to form a tetrad. Crossing-over may occur between the non-sister chromatids. Homologous chromosomes line up at the center of the cell. Homologous pairs separate and move towards opposite ends of the cell. A nuclear membrane forms and cytokinesis follows. The haploid number of duplicated chromosomes line up at the metaphase plate. Sister chromatids separate and become daughter chromosomes that move to the poles. Four haploid daughter cells are formed that are not genetically identical.

Prophase I
Metaphase I
Anaphase and Telophase I
Meiosis II

d

explanation:

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.