Biology B A-Level
Early embryonic development
What Early embryonic development means in Biology B A-Level, as defined for Pearson Edexcel.
Definition of Early embryonic development
Check what you remember
Read the wording for your board, then hide it and explain Early embryonic development in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
The development of the embryo from the zygote, which divides by mitosis to a morula and forms a blastocyst with an inner cell mass and trophoblast.
Topics that use Early embryonic development
- Topic 2: Cells, Viruses and Reproduction of Living Things (Pearson Edexcel A-Level)
Related terms
- Cell theory
- Embryo sac
- Generative nucleus
- Pollen grain
- Treatment and prevention of viral diseases
- Tube nucleus
- Viral structure and classification
- Ethical implications of medical interventions
Using Early embryonic development in the exam
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