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Readers ask: Of the following anatomical structures, which is homologous to the wing of a bird?

Which of the following structures are homologous?

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 considered homologous structures because they have a similar underlying anatomy.

Which of the following is homologous to the wing of a bat?

Interestingly, though bird and bat wings are analogous as wings, as forelimbs they are homologous. Birds and bats did not inherit wings from a common ancestor with wings, but they did inherit forelimbs from a common ancestor with forelimbs.

Which of the following anatomical structures is homologous to the arm of a human?

Homologous Structures Humans Share With Animals Whereas human beings have bones such as the humerus (upper arm), ulna and radius (forearm), carpals (wrist bones ), metacarpals (hand bones ), and phalanges (fingers), these features appear as similar bones in form in the other animals.

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Which are examples of homologous structures quizlet?

Examples of homologous structures are the bones of a cat’s leg, bird’s wing, whale’s flipper and a human arm. They are homologous because they formed from the same embryonic tissue but developed into different mature structures.

What are examples of analogous structures?

Examples of analogous structures range from wings in flying animals like bats, birds, and insects, to fins in animals like penguins and fish. Plants and other organisms can also demonstrate analogous structures, such as sweet potatoes and potatoes, which have the same function of food storage.

What is homologous structures give an example?

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.

What is a analogous trait?

Analogy, in biology, similarity of function and superficial resemblance of structures that have different origins. For example, the wings of a fly, a moth, and a bird are analogous because they developed independently as adaptations to a common function—flying.

What is a homologous trait?

A homologous trait is any characteristic which is derived by evolution from a common ancestor. This is contrasted to analogous traits: similarities between organisms that were evolved separately. The term existed before 1859, but got its modern meaning after Darwin established the idea of common descent.

Are bat and bird wings 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. But birds ‘ wings differ from those of bats in the number of digits and in having feathers for flight while bats have none.

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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 a whale’s front flipper are homologous to the bones in the human arm.

Are vestigial structures convergent or divergent?

Divergent Evolution – The evolution and accumulation of different traits between groups, which results in the formation of new species. Vestigial Structures – A structure or attribute, which is present within an organism but has lost its ancestral function.

What are homologous anatomical structures?

Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. Figure below shows the hands of several different mammals. They all have the same basic pattern of bones.

What does it mean if structures are homologous quizlet?

Homologous structure. Structures that are similar in different species of common ancestry. Vestigial structure. A structure that is present in an organism but no longer serves its original purpose. Inherited.

What is an analogous structure quizlet?

Analogous Structures. body parts that share a common function but not structure. two species faced similar challenges that brought them on a similar evolutionary path. Different Structure Similar Function.

What is the difference between homologous and analogous structures quizlet?

Homologous structures share a common ancestry, but not necessarily a common function. Analogous structures share a common function, but do not share a common ancestry. Similar patterns of embryological development provide further evidence that organisms have descended from a common ancestor.

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