Ключевые слова: biology, cell, clay, competition, concept, education, egg, ejaculation, female, fertile, fertility, fertilization, fertilize, genetic, handmade, health, human, insemination, life, male, medical, medicine, modeling clay, ovulation, ovule, plasticine, play clay, pregnancy, pregnant, procreation, reproduction, science, semen, sex, sperm, spermatozoid, winner, woman,