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anatomy, bioart, biology, biology concept, cell division, cellular fusion, cellular process, conception, conception moment, dna, embryo, fertility, fertilization, fertilized egg, genetic creation, health, human biology, human body, human egg, human reproduction, life beginning, life formation, life origin, medical science, microscopic detail, microscopic life, microscopic photography, microscopic view, miracle of life, nature, new life, ovulation, ovule, ovum, pregnancy, reproductive cell, reproductive health, reproductive system, science background, scientific illustration, sperm, sperm cell, spermatozoon, zygote,