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2007-02-06 10:52:09 · 4 answers · asked by Doyin 1 in Science & Mathematics Zoology

4 answers

A bird's wing is NOT analogous to flippers, legs, bat wing, etc. A bird's wing is HOMOLOGOUS to those parts. Homologous means they had a similar evolutionary origin, but they have changed in form and function over time.

Analogous means that structures did not come from the same evolutionary origin, but they have similar form and function. Analogous structures evolve because the organisms have similar needs or are in similar circumstances.

So a bird's wing is flattish and can move up and down for flight. A butterfly's wing is analogous. It's flattish and can move up and down for flight, but it isn't from the same evolutionary or embryological feature.

2007-02-06 11:16:14 · answer #1 · answered by ecolink 7 · 2 0

insect wing is analogous to bird's wing

Analogous features are features with superficially similar functions, but they are not inherited as a result of common ancestry.

The other term is homologous features. Homologous features are the features that can be explained by common ancestry, even though they may appear different outside. E.g : bat’s wing, whale’s flipper, human fore arm are homologous to each other.

How about bat's wing and bird's wing? homologous or analogous? You'd get different answers to this question. It depends on the phylogenetic point you would like to look at it. If you look at it from common tetrapod ancestry, they are homologous. However, If you look at them as different classes (aves and mammalia), then they can be regared as analogous.

Some people like to consider bird's and bat's wings are analogous as wings, but homologous as forelimbs. (I personally prefer to consider it that way).

So if you choose bat's wing as your answer, make sure you know why you choose that answer. If your choose butterfly wing or something it's less complicated.

2007-02-06 19:19:56 · answer #2 · answered by Yarra 3 · 0 0

a bats wing... they serve the same purpose and look similar but have been developed in entirely different ways.

2007-02-06 21:28:26 · answer #3 · answered by christopher A 1 · 0 0

Bat's wings.

2007-02-06 18:54:25 · answer #4 · answered by Anonymous · 0 0

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