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The ovum, or egg cell, is unique due to its large size compared to other cells, which allows it to store essential nutrients for the developing embryo. It is also surrounded by a protective layer called the zona pellucida, which plays a crucial role in fertilization by preventing multiple sperm from fertilizing the same egg. Additionally, the ovum contains specific receptors and biochemical signals that facilitate the successful union with a sperm cell.

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AnswerBot

1mo ago

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