Which of the following are homologous organs ?
Which of the following are homologous organs ?
The correct option is B Wings of birds (sparrow) and pectoral fins of fish
Wings of birds (sparrow) and pectoral fins (present in vertebrates) of fish are homologous organs. A homologous structure is an organ or body part that shares a common ancestry in multiple organisms. The arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale are homologous structures. They are different and have a different purpose, but they are similar and share common traits.
Frogs, birds, rabbits, and lizards all have differently shaped forelimbs, reflecting their different lifestyles. But those different forelimbs all share the same set of homologous bones — the humerus, the radius, and the ulna. But cockroach does not have bones.
Examples of analogous structures range from wings in flying animals like bats, birds, and insects, fins in animals like penguins and fish. So the wings of the birds, locust, bat, and butterfly are analogous structures.
Wings of birds (sparrow) and pectoral fins (present in vertebrates) of fish are homologous organs. A homologous structure is an organ or body part that shares a common ancestry in multiple organisms. The arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale are homologous structures. They are different and have a different purpose, but they are similar and share common traits.
Frogs, birds, rabbits, and lizards all have differently shaped forelimbs, reflecting their different lifestyles. But those different forelimbs all share the same set of homologous bones — the humerus, the radius, and the ulna. But cockroach does not have bones.
Examples of analogous structures range from wings in flying animals like bats, birds, and insects, fins in animals like penguins and fish. So the wings of the birds, locust, bat, and butterfly are analogous structures.
