New cells are made every second. select every example that would involve new cells being made. an egg being fertilized by a sperm and developing into a zygote a child growing a bacterial cell reproducing a pollen grain landing on a plant ovule that will develop into a seed a burned area of skin healing

Ans.

Cell division or cell reproduction is a process that involves formation of new daughter cells from a single parent cell. Cell division is important for the growth and development, reproduction, and healing of wounds or damaged skin.

The somatic cells or body cells divide continuously to form daughter cells  for growth and development of organism. The bacterial cells reproduce by binary fission to form new daughter cells. The cells of damaged area also show division to make new cells that heal the wound or replace the damaged ones.

Thus, the correct options are 'a child growing, a bacterial cell reproducing, and a burned area of skin healing.'

b. heterotroph

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.