Following are some examples of homology: 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.
What are the homologous structures give an example?
Homologous structures are structures having a similar origin, similar development, similar internal structure and basic plan but showing different external form and function. Example – Forelimbs of mammals, birds, reptiles and amphibians.
Which is the best example of homologous structures?
A great example of homologous structures are the wings of a bat and the arms of a human. Bats and humans are both mammals, so they share a common ancestry. Both a bat’s wing and a human’s arm share a similar internal bone structure, even though they look very different externally.
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What is homologous and example?
Homologous structures are the opposite of analogous structures, which refers to body parts that serve similar functions but have different structures or origins. For example, both birds and wasps have wings, but their wings have different appearances and consist of different parts and evolved from different origins.
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Is a dragonfly wing a homologous structure?
When organisms share similar characteristics along with a common ancestor, we say that their characteristics are homologous structures. The wings of butterflies and dragonflies are homologous structures.
Is a monkey homologous or analogous?
Bats, whales, and many other animals have very similar homologous structures, demonstrating that these creatures all had a common ancestor. The tailbone in human beings is so-named because it is a homologous structure to the beginning of many animals’ tails, such as monkeys.
What are examples of homologous and analogous structures?
Homologous structures share a similar embryonic origin; analogous organs have a similar function. For example, the bones in the front flipper of a whale are homologous to the bones in the human arm. These structures are not analogous. The wings of a butterfly and the wings of a bird are analogous but not homologous.
What are homologous structures give an example is it necessary that homologous structures always have 3 common ancestor justify your statement?
Yes, It is necessary that homologous structures always have a common ancestor. As illustrated in the above example, the basic structure of arm of human and wing of bat is similar but they modified to perform different function in different vertebrates. Hence, this shows that they have evolved from a common ancestor.
What are homologous structures give an example is it necessary that homologous?
Homologous structures : These are the structures which bear common basic structure but perform different functions. Examples : Forelimbs of reptiles, amphibians and mammals. Homologous structures bear common ancestory but get differently modified to carry on different activities.
Is a dolphin flipper a homologous structure?
A whale flipper and a bat wing are also homologous structures in the same sense as a human arm and cat arm with a humerus, radius and ulna, and so on.
Is a frog homologous or analogous?
Forelimbs of frogs and lizards are the example of homologous organs. Homologous structures are the anatomically similar structures that have a common ancestor.
Are birds and bats homologous?
Sometimes it is unclear whether similarities in structure in different organisms are analogous or homologous. An example of this is the wings of bats and birds. These structures are homologous in that they are in both cases modifications of the forelimb bone structure of early reptiles.
What Four animals are listed as examples of homologous structures?
The common structures are the body parts but the difference is the structure. What four animals are listed as examples of homologous structures? Humans, dogs, birds, and whales.
Which of the following are the examples of homologous organs?
A Forelimbs of frog and bird.B Arms of rabbit and human.C Forelimbs of lizard and bat. ∙ Homologous organs are those organs which have similar structure and have evolved from a common ancestor, but differ in their function.
Is a octopus homologous?
Tetrapod and octopus limbs evolved independently after their point of common ancestry, so they were not inherited from a common ancestor. Therefore, they are not homologous. The same is true of the grasshopper leg and the sea star arm.
Are birds and whales homologous?
The flippers in whales and the wings in the birds are referred to as homologous because these organs have arisen through divergent evolution. These organisms, therefore, have a common ancestor.
Are butterfly wings and bat wings homologous?
The wings of a butterfly and the wings of a bat cannot be considered homologous because though the function of wings in both the cases is same, but they have different basic design.
