Ключевые слова: 3d, acrosome, anatomy, background, biology, birth, blue, cell, chemical, chemistry, chromosome, composition, compound, diagram, dna, drawing, fertile, fertility, gamete, gene, icon, illustration, infertility, life, line, logo, male, man, medicine, men, model, organism, ovum, reproductive, science, seed, semen, sex, sexual, sperm, structural, structure, system, tail,