'Different sperm' diaporamas de présentation

Learning About Pregnancy and Childbirth

Learning About Pregnancy and Childbirth. Unit 4, Lesson 21 National Health Standards 1.1, 1.4, 1.5, 1.6, 1.9, 2.10, 3.3, 3.4, 8.1. Conception and Heredity. Conception Also called fertilization Union of an ovum and a sperm Heredity

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Fertilization

Fertilization. Sperm are ejaculated from the penis into the vagina just below the cervix and then swim through the uterus into the Fallopian tubes and they join with an egg = internal fertilization The egg is surrounded by a thick protective layer that contains sperm binding sites

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Three Requirements for Natural Selection

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Human Growth & Development Reproduction

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