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Elementary School: 3rd, 4th & 5th Grade
Science
Reproduction 2
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Q.1
Which of the following physical changes, in girls, during adolescence is NOT true?
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Breasts start to develop
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Hips get narrower
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Ovaries start to release eggs
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Pubic and underarm hair grow
Q.2
Which of the following does an implanted fertilized egg NOT need?
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Carbon dioxide
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Food
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Oxygen
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Warmth
Q.3
Which of the following physical changes, in boys, during adolescence is NOT true?
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Facial hair grows
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Muscles and penis grow bigger
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Testes start to produce sperm
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Voice becomes higher
Q.4
Which of the following does NOT reduce fertility?
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Female sex hormone in a fertility drug
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Female sex hormone in an oral contraceptive
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Female sex hormone to prevent ovulation
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Female sex hormone to mimic pregnancy
Q.5
Which of the following is NOT true?
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Carbon dioxide passes from the fetal blood to the mother
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Food passes from the mother's blood to the fetal blood
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Oxygen passes from the mother's blood to the fetal blood
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The fetal blood and the mother's blood mix
Q.6
Which of the following is NOT true about an egg cell?
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It has a massive food store for the developing embryo
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It is much larger than a sperm cell
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One egg is only ever released at a time
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The nucleus contains chromosomes
Q.7
Which of the following does NOT control the menstral cycle?
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A fertility drug
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Estrogen alone
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Estrogen and progesterone together
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Progesterone alone
Q.8
The fertilized egg starts to divide. At first it is called .......
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a baby
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a fetus
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a period
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an embryo
Q.9
Which of the following is NOT true about a sperm cell?
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It has a tail which moves so it can swim
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The head contains enzymes to make a hole in the egg cell
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The nucleus contains chromosomes
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They live for a long time
Q.10
The physical changes during adolescence occur .......
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because glands make hormones to start the changes
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because you feel and think differently
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because you have mood swings
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because your emotions change
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