Available Answers

1. 1.

   State True or False.

   1. Dicot plants have two cotyledons.
   2. Lion, frog and wolf are omnivores.
   3. All animals move with the help of their legs.
   4. The place where two bones meet is called joint.
   5. Muscles work by contraction and expansion.
2. 2.

   Give one word for the following.

   1. The part of the seed that produces the stem and leaves.
   2. Breathing organ of mammals.
   3. The special changes in an animal's behaviour to suit its habitat.
   4. The longest bone of the human body.
   5. The joint that allows the bones to move easily in a large circle.
3. 3.

   Match the following columns.

   1. Chemicals used to kill harmful insects	a. bone marrow
   2. Frogs and lizard	b. ligaments
   3.Fish, prawns and crabs	c. insecticides
   4. Production of red blood cells	d. aquatic animals
   5. Strong and tough fibres holding the bones at the joints	e. sticky tongue

    

4. 4.

   Solve the given crossword on the basis of clues given below.

   Across

   1. Spongy, elastic bag-like organs through which mammals breathe
   5. Crops grown from June to October
   7. The scattering of seeds away from the parent plant
   9. The place where two  bones meet
   10. Framework of bones that supports the body

   

   Down

   2. The medium on which plants grow.
   3. The tough elastic tissue by which our ears are made.
   4. Mass movement of animals to avoid harsh weather conditions.
   6. The natural surrounding where an animal lives
   8. Animals that gnaw the seeds or nuts with their sharp front teeth.