Write any one of the roles air sacs play in the aerial adaptation of pigeon.

Write down the role of air sacs in birds.

Prepare a list of roles air sacs of pigeon play to fly in the air.

Prepare a list of roles air sacs of pigeon play to fly in the air.

Write any three roles of lipid in living beings.

Write any three roles of tissue culture on plant hybridization.

Write any one purpose of micropropagation.

Write down the adaptive importance of the following organ or behavioural character- Air sac of pigeon.

Write name of egg laying breed of fowl. Write the name and symptoms of any one viral disease of poultry bird.

Write the role of scrubber for air pollution control.