Identify parts A and B and state their functions:

‘A’ refers to the fins of a fish. Fins are the part of fish which helps in locomotion of fish in search of food and protect themselves from predators. Also fins help in swimming and sudden movements in the water.

‘B’ refers to the wings which acts as forelimbs for the birds and helps in flying. The curved wings give them the thrust to move through air and help them to fly.