Available Answers

1. 1.

   Fill in the blanks.

   1. Blood group AB has _______________ and antibodies _______________.
   2. The membranes enveloping the brain are called ______________.
   3. The message that travels along a nerve in the form of a wave of chemical disturbance is called ______________.
   4. ______________ vaccine is given to children as a preventive measure against tuberculosis.
   5. The process of treating animal skin to produce leather is called ____________.
2. 2.

   Write true or false. Correct the false statements.

   1. Blood group O is a universal donor while AB is a universal recipient.
   2. Lymph nodes produce erythrocytes.
   3. Motor nerves carry impulses from the sense organs to the spinal cord.
   4. Bites ofpoisonous snakes can only be treated with anti-venom serum.
   5. The place where bees are cultured and bred to get commercial products is called apiary.
3. 3.

   Differentiate between Antigens and Antibodies.

4. 4.

   Differentiate between Auricles and Ventricles.

5. 5.

   Differentiate between Cerebrum and Cerebellum.

6. 6.

   Differentiate between Sensory nerves and Mixed nerves.