Term 2 Organ Systems in Animals Three Marks Questions

9th Standard

    Reg.No. :
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Science

Time : 00:45:00 Hrs
Total Marks : 30
    10 x 3 = 30
  1. Define the following terms:
    a. Digestion
    b. Osmoregulation
    c. Emulsification
    d. Ovulation

  2. Name the types of teeth present in an adult human being. Mention the functions of each.

  3. What are the end products of digestion of starch, proteins and fats respectively?

  4. Explain the structure of nephron.

  5. What are the functions of ovaries and uterus in female reproductive system?

  6. Give reasons for the following:
    a. Scrotum remains outside the body of human males.
    b. The wall of the stomach is not digested by its own enzyme.

  7. Reproductive organs are also considered as endocrine glands

  8. Skin is considered to be an excretory organ - Justify.

  9. What is homeostasis

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