Class VIII

The thread like structure in the fertilized egg is known as:
  1. Chromosomes
  2. Zygote
  3. Foetus
  4. Embryo
The first menstrual flow at puberty in females is termed as ________
  1. Menopause
  2. Menstruation
  3. Ovulation
  4. Menarche
Metamorphosis in frog is controlled by which of the following hormone?
  1. Thyroid
  2. Insulin
  3. Adrenalin
  4. Thyroxine
The period of life when the body undergoes changes, leading to reproductive maturity, is called?
  1. Puberty
  2. Adolescence
  3. Metamorphosis
  4. Menarche
Which of the following glands secrete oil?
  1. Thyroid gland
  2. Pituitary gland
  3. Sebaceous gland
  4. Endocrine gland
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