Analogous organs are similar in function but anatomically different and unrelated
e.g., the wings of bats and the wings of insects.
The homologous organs have common origin and are built on the same fundamental pattern but perform varied functions
Example e.g. flipper of seal, wing of a bat, forelimb of mole, front leg of horse and arm of man.
Thorns of Bougainvillea and tendrils of Passiflora are modified branches i.e., homologous.