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Science: Middle School: Grades 6, 7 and 8 Quiz - Reproduction 2 (Questions)

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Adolescence is the time when a human's reproductive organs become mature. Puberty is the process of physical changes by which a child's body becomes an adult body capable of reproduction.

See how well you understand reproduction by taking this science quiz.

Which of the following physical changes, in girls, during adolescence is NOT true?

[ ]	Breasts start to develop
[ ]	Hips get narrower
[ ]	Ovaries start to release eggs
[ ]	Pubic and underarm hair grow

Which of the following physical changes, in boys, during adolescence is NOT true?

[ ]	Facial hair grows
[ ]	Muscles and penis grow bigger
[ ]	Testes start to produce sperm
[ ]	Voice becomes higher

The physical changes during adolescence occur .......

[ ]	because glands make hormones to start the changes
[ ]	because you feel and think differently
[ ]	because you have mood swings
[ ]	because your emotions change

Which of the following does an implanted fertilized egg NOT need?

[ ]	Carbon dioxide
[ ]	Food
[ ]	Oxygen
[ ]	Warmth

The fertilized egg starts to divide. At first it is called .......

[ ]	a baby
[ ]	a fetus
[ ]	a period
[ ]	an embryo

Which of the following is NOT true?

[ ]	Carbon dioxide passes from the fetal blood to the mother
[ ]	Food passes from the mother's blood to the fetal blood
[ ]	Oxygen passes from the mother's blood to the fetal blood
[ ]	The fetal blood and the mother's blood mix

Which of the following is NOT true about a sperm cell?

[ ]	It has a tail which moves so it can swim
[ ]	The head contains enzymes to make a hole in the egg cell
[ ]	The nucleus contains chromosomes
[ ]	They live for a long time

Which of the following is NOT true about an egg cell?

[ ]	It has a massive food store for the developing embryo
[ ]	It is much larger than a sperm cell
[ ]	One egg is only ever released at a time
[ ]	The nucleus contains chromosomes

Which of the following does NOT control the menstral cycle?

[ ]	A fertility drug
[ ]	Estrogen alone
[ ]	Estrogen and progesterone together
[ ]	Progesterone alone

10.

Which of the following does NOT reduce fertility?

[ ]	Female sex hormone in a fertility drug
[ ]	Female sex hormone in an oral contraceptive
[ ]	Female sex hormone to prevent ovulation
[ ]	Female sex hormone to mimic pregnancy

Science: Middle School: Grades 6, 7 and 8 Quiz - Reproduction 2 (Answers)

Which of the following physical changes, in girls, during adolescence is NOT true?

[ ]	Breasts start to develop
[x]	Hips get narrower
[ ]	Ovaries start to release eggs
[ ]	Pubic and underarm hair grow

Hips get wider

Which of the following physical changes, in boys, during adolescence is NOT true?

[ ]	Facial hair grows
[ ]	Muscles and penis grow bigger
[ ]	Testes start to produce sperm
[x]	Voice becomes higher

Voice becomes deeper

The physical changes during adolescence occur .......

[x]	because glands make hormones to start the changes
[ ]	because you feel and think differently
[ ]	because you have mood swings
[ ]	because your emotions change

The others are all emotional changes which occur

Which of the following does an implanted fertilized egg NOT need?

[x]	Carbon dioxide
[ ]	Food
[ ]	Oxygen
[ ]	Warmth

Carbon dioxide is removed as the fertilized egg develops

The fertilized egg starts to divide. At first it is called .......

[ ]	a baby
[ ]	a fetus
[ ]	a period
[x]	an embryo

The embryo is called a fetus at about nine weeks

Which of the following is NOT true?

[ ]	Carbon dioxide passes from the fetal blood to the mother
[ ]	Food passes from the mother's blood to the fetal blood
[ ]	Oxygen passes from the mother's blood to the fetal blood
[x]	The fetal blood and the mother's blood mix

The two blood supplies NEVER mix

Which of the following is NOT true about a sperm cell?

[ ]	It has a tail which moves so it can swim
[ ]	The head contains enzymes to make a hole in the egg cell
[ ]	The nucleus contains chromosomes
[x]	They live for a long time

They live for a very short time

Which of the following is NOT true about an egg cell?

[ ]	It has a massive food store for the developing embryo
[ ]	It is much larger than a sperm cell
[x]	One egg is only ever released at a time
[ ]	The nucleus contains chromosomes

Two eggs are released when non-identical twins form

Which of the following does NOT control the menstral cycle?

[x]	A fertility drug
[ ]	Estrogen alone
[ ]	Estrogen and progesterone together
[ ]	Progesterone alone

Estrogen causes the uterus lining to thicken, progesterone maintains the lining. Together they control ovulation

10.

Which of the following does NOT reduce fertility?

[x]	Female sex hormone in a fertility drug
[ ]	Female sex hormone in an oral contraceptive
[ ]	Female sex hormone to prevent ovulation
[ ]	Female sex hormone to mimic pregnancy

The fertility drug stimulates eggs to mature and be released