Available Answers

1. 1.

   Fill in the blanks.

   1. ____________ are the most developed among all animals.
   2. The eggs of birds contain a growing baby called the ____________.
   3. In a bird's egg the ____________ contains the stored food for the chick.
2. 2.

   Name the following.

   1. The process of producing young ones.
   2. The yellow portion of an egg.
   3. The chick that grows inside the egg.
   4. The young one of a frog.
   5. Shedding of old skin by animals.
   6. The larva of a housefly.
   7. The larva of a butterfly.
3. 3.

   Understand the relationship and complete the following as shown.

   1. Cockroach   → _______________ Frog          → tadpole
   2. Lizard      → _______________ Goat          → gives birth to babies
   3. Housefly    → maggot          Butterfly     → _______________
   4. Caterpillar → leaves          Embryo in egg → _______________
4. 4.

   What are the different ways by which animals reproduce?

5. 5.

   What are the characteristics of mammals?

6. 6.

   What is special about dolphins and whales?