Speciation is b. the process by which new species are formed. They are often caused by the isolation of certain organisms in terms of environment or geographical area. This is part of the evolutionary changes that various species undergo to brought about by natural selection.
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Cells come from other living cells
All living things are composed of one or more cells
The cell is the basic unit of life.
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When cell division is not regulated it can cause a malignant rumour called cancer , radiation is used in chemotherapy to kill the cancer, tumoutsd can also be benign
