B5 Brief Revision Notes

Cell Adaptations and Specialisation

Living organisms start life as a zygote. 

This zygote divides to make two daughter cells - these daughter cells are identical to each other and the parent cell, and both have 46 chromosomes.

As these cells continue to divide, they increase and form a group of cells (an embryo)

As the embryo develops, one of the cells may change shape and become adapted to do a specific job. This cell is then specialised. 

Two examples of specialised cells found in the blood are:

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