© OUP: To be used solely in purchaser’s school or college 7B Reproduction New life Human reproduction Pregnancy Puberty 7B Reproduction

© OUP: To be used solely in purchaser’s school or college 7B Reproduction New life

© OUP: To be used solely in purchaser’s school or college Reproduction is the creation of a new living thing. All species reproduce by creating new individuals called offspring. 7B New life – What is reproduction?

© OUP: To be used solely in purchaser’s school or college 7B New life - How does a new life start? In most animals, a new life begins when a female egg cell joins with a male sperm cell. sperm cell egg cell (ovum)

© OUP: To be used solely in purchaser’s school or college How does the fertilised egg contain genetic information from the female parent and the male parent? 7B New life - How does a new life start? When an egg and sperm meet, the two nuclei fuse together to form a new living thing. This process is called fertilisation.

© OUP: To be used solely in purchaser’s school or college number of eggs fertilisation time until birth care after birth? survival of offspring 1000s externalinternal 5-15 days3 weeks8-9 weeks9 months noyes lowhigh 7B New life – Reproductive patterns Animals reproduce in different ways to ensure survival depending on their environment. Compare the reproductive patterns of different animals.

© OUP: To be used solely in purchaser’s school or college 7B Reproduction Human reproduction

© OUP: To be used solely in purchaser’s school or college The male body is adapted to produce sperm and pass it on to the female. The female body is adapted so that an egg cell can be fertilised by a sperm cell. The female is also designed to carry the developing offspring until it is ready to be born. 7B Human reproduction - Adaptations How are adult humans adapted for reproduction?

© OUP: To be used solely in purchaser’s school or college 7B Human reproduction - Male reproductive organs

© OUP: To be used solely in purchaser’s school or college 7B Human reproduction - Female reproductive organs

© OUP: To be used solely in purchaser’s school or college gegs tusure estest merps pinalfoal bute snepi motrucs sevario gaivan smerp dctu These scrambled words are parts of the human reproductive system. 7B Human reproduction - Female or male? Unscramble them and decide if they are female or male?

© OUP: To be used solely in purchaser’s school or college 7B Human reproduction – Fertilisation Human reproduction begins with fertilisation.

© OUP: To be used solely in purchaser’s school or college 7B Reproduction Pregnancy

© OUP: To be used solely in purchaser’s school or college 7B Pregnancy – Development of the human fetus

© OUP: To be used solely in purchaser’s school or college Why does a pregnant woman have to be careful about what she takes into her body? 7B Pregnancy - Dangers to fetus A baby is entirely dependent on its mother during pregnancy. Oxygen and food pass across the placenta from the mother’s blood to the embryo’s blood. Some harmful substances can also pass across the placenta with serious effects on the developing baby.

© OUP: To be used solely in purchaser’s school or college 1 alcohol 2 drugs 3 smoking 4 HIV virus Harmful substance 5 Rubella virus 1 alcohol 2 drugs 3 smoking 4 HIV virus Harmful substance 5 Rubella virus A Fetus may be infected with life-threatening disease before it is born. B Oxygen supply is reduced by nicotine and carbon monoxide. C Embryo infected and cannot develop properly. It may be born blind or deaf. D Blood vessels and heart may be damaged. Baby maybe small, born early or born dead. Effect on baby E Baby may be born underweight or brain-damaged. Match the substance to the effect it may have on a developing baby. 7B Pregnancy - Dangers to fetus

© OUP: To be used solely in purchaser’s school or college A.During labour, hormones make the muscles of the uterus contract at regular intervals. B.Contractions continue until the placenta has passed out of the mother’s body. C.The muscles of the cervix relax and the head of the baby passes into the vagina. D.The baby turns so that its head is above the cervix, ready for birth. E.The contractions of the uterus push the baby out through the vagina. F.The amnion splits and the watery amniotic fluid runs out. A.During labour, hormones make the muscles of the uterus contract at regular intervals. B.Contractions continue until the placenta has passed out of the mother’s body. C. The muscles of the cervix relax and the head of the baby passes into the vagina. D.The baby turns so that its head is above the cervix, ready for birth. E.The contractions of the uterus push the baby out through the vagina. F.The amnion splits and the watery amniotic fluid runs out. Put these sentences about the stages of birth in the right order. 7B Pregnancy – Birth

© OUP: To be used solely in purchaser’s school or college 7B Reproduction Puberty

© OUP: To be used solely in purchaser’s school or college Why is the rate of growth not a straight line? When is the growth rate fastest? 7B Puberty - Growing up Humans change as they grow from a baby to an adult. The graph shows the rate of growth for a typical human.

© OUP: To be used solely in purchaser’s school or college 7B Puberty - Hormones 2. During puberty young people start to develop into… a) astronauts. b) androids. c) adults. 1. Most people reach puberty between the ages of… a) 10 and 18. b) 18 and 30. c) 30 and 60.

© OUP: To be used solely in purchaser’s school or college 4. Hormones are released inside the body and cause… a) physical changes only. b) emotional changes only. c) physical and emotional changes. 3. Changes during puberty are controlled by special chemicals called… a) hornets. b) hormones. c) horses. 7B Puberty - Hormones

© OUP: To be used solely in purchaser’s school or college 5. Emotional changes during puberty affect… a) feelings and behaviour. b) your hearing. c) the weather. 7B Puberty - Hormones 6. Physical changes during puberty affect the size and shape of… a) …the body. b) …CD players. c) …hornets.

© OUP: To be used solely in purchaser’s school or college 8. Understanding the science of your body as it changes is important to… a) your neighbours. b) your doctor. c) your health. 7B Puberty - Hormones 7. After puberty the individual has become… a) sexually mature and is able to produce offspring. b) a professional footballer and is able to go shopping. c) a blackbelt in judo and is able to go travelling.

© OUP: To be used solely in purchaser’s school or college 7B Puberty - Menstrual cycle

© OUP: To be used solely in purchaser’s school or college 7B Puberty - Menstrual cycle