Matching Pairs SCIENCE VOCABULARYOnline version Look at the pictures and match with the correct definition. by Yareli Vázquez Flores 1 Plancenta an organ that passes nutrients and oxygen from the mother to the embryo in the uterus. 2 Sperm are male sex cells. 3 Embryo what are the zygote becomes after it gets bigger. 4 Zygote is the first cell of a new human being produced by the union of egg and sperm cells. 5 Pregnancy is the period from the moment of fertilization until the birth of the baby. 6 The female sex cell produced in the ovaries. 7 Fertilization is the process when an egg cell and a sperm cell unite in one of the Fallopian tubes.
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