Types of growth, Biology



Body grows by enlargement of its cells without increase in number of cells.

eg. Nematodes, rotifers, tunicates. Growth of body muscle by excercise.


It is due to increase in the number of cells as common in embryo.


In post embryonic devlopment power of cell division is lost.

At some places reserve cells present, divide, producing new cells to replace the worm out cells, eg. Stratum malpighi


It involves the addition of new layer on the previously formed layers.

eg. in cell wall. Addition of lamella in the formation of bone.

Posted Date: 10/4/2012 5:47:32 AM | Location : United States

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