Cells split to form new cells. This is called asexual reproduction. However, at the dawn multicellular life on earth, one cell ate another, but the one that got eaten didn't die. Instead it became what we call an organelle, which helps modern day eukaryotic cells to generate energy.
2006-07-25 13:38:15
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answer #1
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answered by Stacy 3
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There is a theory that the chloroplast of the plant cell existed as an organism long ago. When this organism was swallowed by a cell, the two just found a good symbiotic relationship with each other, and thus, when that cell divides, it included the engulfed chloroplast. And now we have a plant cell. However, most processes that involve in making new cells are by cell division, that is, they split together. Therefore it depends the cells want, if they want to reproduce, they have to split and divide, if they want to conserve nutrients, they have to unite.
2006-07-25 13:38:43
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answer #2
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answered by k9 1
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In humans the cells divide. There are two kinds of ways. Mitosis and meiosis. Meiosis is for reproduction and it basically splits everything in half when it divides. Mitosis is basic cell division for your body. Everything in the cell duplicates then the cell divides.
2006-07-25 16:05:06
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answer #3
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answered by andeegi 2
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Cells go through a process called mitosis in which they split to produce new cells.
2006-07-25 13:37:02
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answer #4
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answered by Shawna 3
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It depends on what kind of cell you are talking about. bacteria and plant cells divide. Human reproductive cells undergo meiosis which causes their chromosome number to be half that of normal cells. When reproductive cells unite they can then form a cell with the correct number of chromosomes again. Then they can divide, and divide, and divide, governed by chemical and hormonal signals.
2006-07-25 13:37:33
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answer #5
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answered by liketoaskquestions 1
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While some simple life forms like algae have a rather primal form of conjugation, they are still many celled.
Remember high school biology, all that telophase, anaphase, metaphase stuff. Yup, unicellular life forms just divide.(Provided they have already copied their DNA, and formed centromeres, and alligned their homologous amides ,and.....
2006-07-25 13:41:23
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answer #6
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answered by Physics is the Answer. 2
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