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| style="height:20px; width:200px; text-align:center;" |The [[Cell (Biology)|cells]] in this [[embryo]] are being assigned specific jobs as it starts to look more like a [[human]].
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===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f258 ''Embryo, pages 13, 26, 202, 211-213, 258, 309, GCSE Biology; Student Book, Collins, AQA '']
:[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f259 ''Embryo, screening pages 213, 258-9, GCSE Biology; Student Book, Collins, AQA '']