Class VIII

Fertilisation is called
  1. To produce sperm
  2. To produce eggs
  3. Fusion of sperms and eggs
  4. all of the above
The number of chromosomes are present in human cell.
  1. 22 pairs
  2. 23 pairs
  3. 24 pairs
  4. 26 pairs
Reproductive phase in females lasts at the age of
  1. 40-42 years
  2. 28-35 years
  3. 45-50 years
  4. 10-12 years
The female hormone secreted by the ovaries at the onset of puberty is _ 
  1. Estrogen 
  2. Insulin 
  3. Adrenalin 
  4. Testosterone 
Larynx is called
  1. Voice box
  2. Music box
  3. Respiratory organ
  4. None of these
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