CBSE  /  Class 8  /  Science  /  Reaching the Age of Adolescence

  • 1. 
    Reproductive age in women starts when their:

  • menstruation starts
  • breasts start developing
  • body weight increases
  • height increases

  • 2. 
    The right meal for adolescents consists of:

  • chips, noodles, coke
  • chapati, dal, vegetables
  • rice, noodles and burger
  • vegetable cutlets, chips and lemon drink

  • 3. 
    Which of the following combination of chromosomes lead to the birth of a baby girl:

  • XX
  • XY
  • X
  • Y

  • 4. 
    Which of the following combination of chromosomes lead to the birth of a baby boy:

  • XX
  • XY
  • X
  • Y

  • 5. 
    All human beings have pairs of chromosomes in the nuclei of their cells.

  • 22
  • 2
  • 23
  • 46

  • 6. 
    The unfertilised egg always has X chromosome.

  • two
  • one
  • four
  • none of these

  • 7. 
    ‘Goitre’ is a disease of

  • adrenal gland
  • pancreas
  • thyroid gland
  • none of these

  • 8. 
    Which or ht ronowing proIdes iron to our body:

  • leafy vegetabks
  • citrus
  • meat
  • all of these

  • 9. 
    Adreanlia hormone is produced by:

  • pituitary gland
  • thyroid gland
  • adrenal gland
  • pancreas

  • 10. 
    Whea the sperm contributes a Y-chromosome to the egg (ovum) at fertllisatin than the zygole would develop into a:

  • femaict,hild
  • malechild
  • either female or male child
  • none of these
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