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Explain how an embryo is formed |
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Answer» Answer: Each embryo starts development as a zygote, a single cell resulting from the FUSION of gametes (i.e. FERTILIZATION of a FEMALE egg cell by a male sperm cell). ... Next, the cells in a blastula-stage embryo START REARRANGING themselves into layers in a process called gastrulation. Explanation: make it brainliest answer |
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