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ORCHIDS The International School

Oviparous Viviparous

1) What Is Ovoviviparity? Explain With an Example.

  • The term ovoviviparity describes a type of reproductive adaptation where the female lays the eggs. These eggs are then nurtured inside the body of a male or female parent till the offspring matures.
  • This is different from the condition where the eggs once laid are nurtured outside the body.
  • In sea horses, the embryos develop inside the male body after the eggs are laid by the female.

2) What Are the Functions of an Eggshell?

  • The eggshell is the outermost covering of an egg, made of calcium.
  • It protects the embryo growing inside from infection and physical injury.
  • It is a calcareous membrane that is porous in nature and facilitates gaseous exchange as well.It is a calcareous membrane that is porous in nature and facilitates gaseous exchange as well.

3) Why Do Hens Sit on Their Eggs?

  • Hens sit on their eggs to provide the heat required for the growth of embryos inside the eggs.
  • They do this until the eggs hatch. This process is called incubation.

 

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