Distinguish between analogous organs and homologous organs.
Identify the analogous and homologous organs amongst the following:
Wings of an insect, wings of a bat, forelimbs of frog, forelimbs of human.
Analogous organs: The organs which have the same function and are superficially alike but are quite different in fundamental structure and embryonic origin.
Homologous organs: The organs of different species of common descent which look different and perform different functions, but have a similar basic structure, similar topographic relationship, and similar embryonic origin.
Wings of an insect and wings of a bat are analogous organs. Both these organs are used for flying in the air, but they are very different in structure.
Forelimbs of frog and forelimbs of human are homologous organs. They seem to be built from the same basic design of bones, but they perform different functions.
So, the correct answer is 'Wings of an insect and wings of a bat are analogous and forelimbs of frog and forelimbs of human are homologous organs'.
Analogous organs: The organs which have the same function and are superficially alike but are quite different in fundamental structure and embryonic origin.
Homologous organs: The organs of different species of common descent which look different and perform different functions, but have a similar basic structure, similar topographic relationship, and similar embryonic origin.
Wings of an insect and wings of a bat are analogous organs. Both these organs are used for flying in the air, but they are very different in structure.
Forelimbs of frog and forelimbs of human are homologous organs. They seem to be built from the same basic design of bones, but they perform different functions.
So, the correct answer is 'Wings of an insect and wings of a bat are analogous and forelimbs of frog and forelimbs of human are homologous organs'.
