~Grow & Development I~

Grow --> The permanent and irreversibble addition of size and/or the number of cell.

Development --> The change  infunction it can be maturation or senescence.

Development in Plant, can be recognized by the presence of leaves, roots, flowers, fruits, and seed.



Morfogenesis in animalsnand human can be observed in the early development after the egg is fertilized by the sperm. The cell will divide continuously and organize them selves to form a hollow ball which is so called "blastule". Next, the cell cluster which called is "gastrule". The cell clusters develop into cell layers, namely ; endoderm, mesoderm,and ectoderm layers.

*endoderm layers => dygestive organ, and respiration organ.
*mesoderm layers => muscle, skeleton, organ reproduction, blood circulation, excretion organ.
*ectoderm layers => hair, skin, five sense, nerve organ.