Oxygen is what animals need in order for Carbon Dioxide to be exhaled while breathing. This is part of what the Respiratory System does. Carbon also enters animals that are in contaminated environments such as living next to a factory or a polluted area.
Nucleus has genetic material (DNA) inside it, so it commands the cell about how it has to be function......
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In the alternation of generations life cycle the diploid zygote grows into a sporophyte plant through a process called mitosis.
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Soil erosion is a naturally occurring process that affect all landform. One uss of minerals is Copper
