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crossing over and random orientation of chromosomes occurs in Meiosis I;o Random orientation: ▪ Random orientation of homologous chromosomes creates genetic variation. ▪ There are over 8 million ways that...

Stem cells are undifferentiated cells that can give rise to different types of cells in the body from brain to muscle cells. Stem cells can be used to replace damaged or diseased cells with healthy ones. ...

The main difference between the two is that only normal body cells go through it, so for instance your skin cells go trough mitosis whereas MEIOSIS is specifically for sex cells, so for instance for the p...

All cells and hence all living organisms show life functions that make them distinct from the non-living world. These include: 1.    Nutrition - the cell's ability to acquire food and res...

Primary succession begins with newly formed land such as bare rock of volcanic island.  Pioneer species such as lichens and mosses colonise the rock. When these pioneer species die organic matter builds u...