Is a zygote a two-celled embryo, a solid ball of about 50 cells, a blastocyst, or a fertilized egg?
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The zygote is a fertilised egg...
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Zygotic stage: The zygote is formed when the male gamete (sperm) and female gamete (egg) fuse. Blastocyst stage: The single-celled zygote begins to divide into a solid ball of cells. Then, it becomes a hollow ball of cells called a blastocyst, attaching to the lining of the mother's uterus.
Mark BRAINLIEST
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