Available Answers

1. 1.

   Choose the correct answer (MCQs)

   1. The thinnest blood vessels in the human body are
      1. Arteries
      2. Veins
      3. Capillaries
      4. Can be any of these
   2. Which of the following is a deficiency disease?
      1. Malaria
      2. Rickets
      3. Diabetes
      4. Cholera
   3. Blood cells are made in the:
      1. Bone marrow
      2. Blood vessels
      3. Cartilage
      4. Heart
   4. Which of these reproduces through the root?
      1. Potato
      2. Bryophyllum
      3. Sweet potato
      4. Fern
   5. Which of these can remove warm air from a room?
      1. Ventilator
      2. Exhaust fan placed high up in room
      3. Chimney
      4. All of these
2. 2.

   Fill in the blanks.

   1. The spine is made up of 33 small bones called ______________.
   2. The reproductive organ of a flowering plant is the ______________.
   3. ___________ is a disease caused by the deficiency of proteins, carbohydrates and fats.
   4. Hot air is lighter than ___________ air.
   5. The process of _____________ food makes it more nutririous and digestable.
3. 3.

   Why are exhaust fans in a cinema hall placed near the celling?

4. 4.

   What is obesity? What effects can it have on your health?

5. 5.

   Explain the structure of the ball and socket joint and hinge joint.