<span>The following statements explain how oxygen was introduced into the earliest atmosphere of the Earth and how the presence of oxygen affected life on Earth.
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B) Oxygen is needed to carry out many life processes. The addition of oxygen to the earth's atmosphere assisted with the development of eukaryotic organisms.
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D) Photosynthesis was carried out as cyanobacteria evolved. Oxygen is a product of photosynthesis.
Its B <span>sister chromatids separated and pulled to opposite poles
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the answer is a weigh depends on mass
Plant cell walls are rigid membranes on the outermost part of the cell. The cell wall provides a structured shape for the cell, helping the cell retain its form and shape. The cell wall also controls the rate of replication, allowing plant cells to replicate at a much slower rate than animal cells.
