Question

write a note on homologous and analogous oragans

Answer 1

Homologous organs,

Etymology: Gk, homos, same, logos, relation, organon, instrument

body parts of different species (or sexes) that are structural equivalents, such as the arms of humans and the forelegs of dogs and cats.

Analogous organs are the opposite of homologous organs, which have similar functions but different origins. An example of an analogous trait would be the wings of insects, bats and birds that evolved independently in each lineage separately after diverging from an ancestor without wings.

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Answer 2

Homologous organs

Those organs which have the same basic structure but different function are called homologous organs.

**Example the foreLimbs of a man a lizard a frog etc.

Analogous organs

Those organs which have different basic structure but similar appearances and perform similar function are called analogous organs

**Ex- the wings of an insect and bird have different structure but function are same