This structure is now termed an embryo ... It is 100 to 150 micrometers wide, or roughly the same size as the egg cell. The blastocyst has only three parts: the inner cell mass (A), the ...

If you're male, your body uses meiosis to create sperm cells; if you're female, it uses meiosis to create egg cells. Others cells in your body contain 46 chromosomes: 23 from your father and 23 ...

The spermatozoon has a flagellum, which is a tail-shaped structure that allows the cell to propel and move. In contrast, each egg cell, or ovum, is relatively large and non-motile. During ...

The middle piece is packed with mitochondria to release energy needed to swim and fertilise the egg. The tail enables the sperm to swim. The nerve cell is extended, so that nerves can run to and ...

Can you peel a raw egg and then make it ... dissolved in water), see the diagram above. Osmosis is really important because it takes place in every living cell in every living organism.