Homologous Structures Vs Analogous Structures

That was a great comparison and yes, their common ancestor would be an early tetrapod, most likely an early reptile. Record in the box under the “X”. Evidence for evolution 3. Some of the worksheets for this concept are Homologous structures work 3, Homologous analogous vestigial structures name is 4, Evidence for evolution stations answerkey, Evidence of evolution work part homologous structures, Biology 1 work i selected answers, Evidence of evolution2008, Evidence of evolution. - Analogous structures result from convergent evolution - Analogy vs. Differentiate between homologous and analogous structures Identify both upper and lower limbs of different species that are similar but different in shape or function To unlock this lesson you. Homologous and Analogous Structures Interactive Lab. Analogous Structures • Analogous structures are those that are similar in structure but are not inherited from a common ancestor. Molecular (DNA) evidence. Different evolution, similar origins. Same structure, same function b. Whereas homologous structures point to a similar origin and a common ancestor, analogous structures are when animals have similar structures with similar function, but they evolved separately. Displaying top 8 worksheets found for - Homologous Structures Vs Analogous Structures. How does anatomy provide evidence for evolution? 3. There are many different ways species change, but most of them are based on the idea of Natural Selection. structure and form. This way, the komodo can live, eat, and do whatever komodo dragons. The wings on a bat and the wings on an insect are an example of analogous structures. As another example of evolutionary convergence consider teeth. The final will be Wednesday, December 11, 2019, 11:30-1:30 in the lecture room. It confuses me because this seems like a blend of both homologous and analogous organs to me. Convergent evolution—similar features in species of different lineages (analogous structure that have similar form or function) Microevolution is small changes over a shorter period of time. The difference between Analogous Organ and Homologous Organ is Analogous organs are similar in shape and function but their origin, basic plan and development are dissimilar. Although the basic plan is the same (single bone, two parallel bones, a block of bone. However, some traits have the same function, but very different structures and developmental backgrounds. Homoplasy or analogous structures refers to similar characters shared between different species, but the character is not present or inherited in their common ancestor. Evidence of common ancestry among species comes from many sources. They are very similar anatomically but have different functions. B) The homologous trait that both these species have in common is a paw. Homologous structures have been derived from a common ancestor. All of these. *Homologous Structures. While the evidence of homologous structures has long been known, it has just recently been widely accepted as evidence of evolution. Birds and fish are both vertebrates and possess many homologous traits. The bones in the wings of a bat, dog paws/legs, human hands, whale flippers - all homologous and have metacarpels and phalanges. This chapter deals with the homologous structures in the nervous systems of Arthropoda. Homologous- same evolutionary origin and different functions. The bones of a human's front limb (left) are homologous to the bones of a bat's front limb (right). It confuses me because this seems like a blend of both homologous and analogous organs to me. The use of a dagger is an effective solution to the problem of killing another organism. Example: The wing of a butterfly and the wing of a bat. Analogous structures mean that the animals do not share a recent common ancestor. Authors' response: We agree that the patchy distribution of analogous enzymes is most likely a consequence of rampant horizontal gene transfer , and this is explicitly mentioned in the text:"Non-homologous isoforms of enzymes seem to be recruited from pre-existing enzymes with related activities and specificities following duplication or. Homologous structures are the opposite; they have similar ancestries and common traits but maybe not have the same function in an organism. Are similarities between sharks and dolphins homologous or analogous? (Also, submit your answer) Click “next”. Referenzen: 1. analogous structure. Look for any similar bone structure. While they are similar in structure and function, these organisms do not have a common ancestor, such that they are analogous. Analogous Structures = Same functions, different structures. Evidence of Evolution: homologous, analogous, and vestigial structures Worksheet. To begin this topic, I would like to define what homologous and analogous traits are. Click on "Not all similarity is homology" to go to the next page. human cat Part Il. Analogous structures are the result of convergent evolution (eg. Darwin called these structures analogous features. But if you examine these two structures closely, you will see that each is a modification of the basic incisor tooth structure. Find out what you know about analogous structures among different species by using this interactive quiz and printable worksheet. The two major concepts of the comparative anatomy include Analogous Structures and Homologous Structures. Sharks and dolphins are made up of eukaryotic cells; their common ancestor remains a mystery, and most of their similarities are analogous structures. What is anatomy? 2. Two completely different species, the cat from the feline species and the dog from the canine species both posses the trait of a paw. Homologous(vs(Analogous(• Homologous(structures(will(have(the(same(basic(skeletal(structure(and(are(likely(to(have(developed(from(the(same(embryonic(origin. ’ ‘There was no homology between sequenced clones and analogous repeats in potato IGS. , bat wings and fly wings) come from unrelated genetic sequences. HOMOLOGOUS STRUCTURES Some structures in different organisms are inherited from a common ancestor. For example, insects use wings to fly like bats and birds, but the wing structure and embryonic origin is completely different. Unterschied zwischen homologen und analogen Strukturen. Sqworl makes it easy to organize and share multiple links with just one url. Green profiling of aprotic versus protic ionic liquids: Synthesis and microbial toxicity of analogous structures Author links open overlay panel Joshua E. The arm of a human, the wing of a bird, and the pectoral fins of a whale are homologous structures in that all have similar patterns of bones,… History at your fingertips. Homologous structures arise when two organisms share a trait due to linkage with a common. Artificial selection (as) - selective breeding to encourage desirable traits (analogous to ns) Fig 22. Biogeography 5. What are Homologous Structures 3. org are unblocked. to be homologous among the three of them, as compared with the panda’s analogous “thumb. Pterosaur, bird and bat wings are analogous as wings, but homologous as forelimbs because the organ served as a forearm (not a wing) in the last common ancestor of tetrapods, and evolved in different ways in the three groups. Homologous structures: share a common ancestor, appendage may not serve the sam function, presently, but are structurally similar. On the other hand, the analogous structures are different in terms of anatomy and morphology although they perform similar functions. Are similarities between sharks and dolphins homologous or analogous? (Also, submit your answer) Click “next”. Analogous Structures. Analogous structures are structures in organisms that are similar in appearance, structure, and/or function but did not originate in a common ancestor. Analogous structures are similar structures in different organisms. Displaying all worksheets related to - Homologous And Analogous Structures. Early mammals possessed this ancestral limb structure (which they inherited from their reptilian ancestors), so we know that these modern limb structures are genetically related and therefore homologous. This is in contrast to a homologous structure, which evolutionists claim is the result of descent from a common ancestor with that feature, such as the pentadactyl terminus of the forearm in vertebrates. These Examples of Analogous Structures Will Surely Surprise You The structural features that serve a common function in various species, but have different ancestral origins are called analogous structures, and this phenomenon is called analogy. Shows that functionally similar features can evolve independently of each other. 2 Evidence for Evolution Review - Homology Homologous vs. Wings of butterfly bird and bat. Artificial selection: selective breeding of organisms to encourage the occurrence of desirable traits, analogous to natural selection. It uses its teeth to chew through tree trunks. Pterosaur, bird and bat wings are analogous as wings, but homologous as forelimbs because the organ served as a forearm (not a wing) in the last common ancestor of tetrapods, and evolved in different ways in the three groups. Homologous Structures Homologous structures are ones that are passed down from a common ancestor - they are characteristics that show related origins. Considering that the block structure was observed for more than one-third of the promoters, contamination by paralogs should not account much for our observations. Contrast with ~. The mole uses strong paddle-shaped feet for burrowing, and its large ear openings give it excellent hearing. An example is the bat and the bird. Analogous structures are the result of convergent evolution (eg. Convergent evolution is the independent evolution of similar features in species of different periods or ephos in time line. Homologous structures: share a common ancestor, appendage may not serve the sam function, presently, but are structurally similar. Homologous- same evolutionary origin and different functions. homologous characters. The wings of bats and insects are analogous (homoplastic) because they both function for flight, but evolved from different primitive structures. The use of a dagger is an effective solution to the problem of killing another organism. You have access to a variety of scientific "tools," including images of internal structures, molecular analysis, and embryonic development. In this case, since both organisms are mammals, we know that their ancestor was also a mammal. Thank you for your patience. The anatomy of the homologous structures is similar while the anatomy of the analogous structures is dissimilar. Displaying top 8 worksheets found for - Homologous Structures Vs Analogous Structures. Homology vs. 3) Frogs and salamanders is an example of Homologous structures. , are analogous). See Examples below ” Bird wing and Bat wing - interpretable as homologous since both are vertebrate forelimbs. So the similarity of structure that we call homologous reflects a real commonality of genetic origin and development. The wing structure did not evolve from. Unlike analogous structures that may not necessarily represent similar evolutionary paths, homologous structures represent similar. Sure, our long supple legs look pretty different compared to the stumpy tortoise, but that's because organisms change over time to adapt to different environments. This could be evolutionary ancestry, meaning that the structures evolved from some structure in a common ancestor (the wings of bats and the arms of humans are homologous in this sense) or developmental ancestry, meaning that the structures arose from the same tissue in embryonal development (the. However, they are not homologous as wings, because the organ served as a forearm (not a wing) in the last common ancestor of tetrapods. I want to know whether the wings of birds, pterosaurs and bats are analogous or homologous organs. As adjectives the difference between heterologous and homologous is that heterologous is having different relationships or different elements while homologous is showing a degree of correspondence or similarity. The pouches of each species are used for keeping their premature offspring for further development beyond the womb. Analogous structures arise as similar adaptations to the environment. What is an analogous structure? 6. The study of analogous structures is a type of anatomical comparison between two different species, used to gain evidence for convergent evolution. (pictured on next slide) Different functions, same ancestor structure. You focused on the similarities in the two eye structures (as requested in the assignment) but recognize that the differences are also very interesting. Heterologous is an antonym of homologous. , the wings of butterflies and the wings of birds) that have evolved convergently but do not develop from similar groups of embryological tissues, and that have not evolved from similar structures known to be shared by common ancestors. For instance, analogous structures are the opposite type of structures to homologous structures based on their origin. Homologous Structures show evidence of a common ancestor. Homologous Structures-similar traits in different species because of a common ancestor. Perbezaan Antara Struktur Homolog dan Analogi | Homologous vs Structures Analogous 2019 Perbezaan Utama - Homologus vs Struktur Analog Persamaan antara organisma dan struktur dipercayai diwarisi dari nenek moyang yang sama. The activity shows that homologous structures indicate. Di-hybrid organ d. Homologous structures derive from a common ancestor (eg. Diagram of the skulls of a monitor lizard and a crocodile with homologous bones coloured the same colours. HOMOLOGOUS. What do homologies (or homologous structures) mean? Why are tetrapod limbs and octopus limbs not homologous? Explain. Are similarities between sharks and dolphins homologous or analogous? (Also, submit your answer) Click “next”. Is the penguin fin a vestige? Argue for or against this stance. Analogous structures evolve due to similar environments, not common ancestors. Owen's definitions were: Analogue: a part or organ in one animal which has the same function as another part or organ in a different animal. Homologous chromosomes, sister chromatids, and haploid/diploid. A structure can be homologous at one level, but only analogous at another. analogous structures arestructures in different organisms that look similar, or perform similar functions, but are not derived from the same ancestral source. , type or ), and on all plots described above, a line is drawn to separate type similarities (i. Objectives: Differentiate between homologous and analogous structures and give examples of each. Both herrings and dolphins are streamlined. You have access to a variety of scientific "tools," including images of internal structures, molecular analysis, and embryonic development. describing a homologous, vestigial, or analogous structure. The leaves of opuntia and peepal are analogous organs in plants. Displaying all worksheets related to - Homologous Structures Vs Analogous Structures. arrowBoth Ostriches have wings similar. Analogous structure is when organs share structures that perform similarly or function similarly but are not anatomically similar. List all homologous structure of human male and female reproductive system. human cat Part Il. Flying wings are examples of convergent evolution (analogous structures); however the bones in vertebrate wings are examples of divergent evolution (homologous structures) Analogous Structures: have the same appearance, structure or function but have evolved separately, thus do not share a common ancestor. Examples of Homology By YourDictionary Homology refers to when two or more things have the same evolutionary origin, position or structure. This level of structure describes how regions of secondary structure fold together – that is, the 3D arrangement of a polypeptide chain, including a helices, b sheets, and any other loops and folds. (of chromosomes) pairing at meiosis and having the same structure and pattern of genes. How to infer homology vs analogy is the more interesting question, and is more applicable to the pyramids. Homologous structures are organs or skeletal elements of animals and organisms that, by virtue of their similarity, suggest their connection to a common ancestor. The gill branches in fish are actually homologous to many structures in amphibians, reptiles, birds and mammals, such as the inner ear bones. The wings of pterosaurs (1), bats (2) and birds (3) are analogous: they serve the same function and are similar in structure, but each evolved independently. Organisms with Convergent evolution evolve Analogous structure (means those structure which is similar in function but different in shapes and origin) despite evolving differently from the structure. Contrast with homologous structures. Good opening discussion on your analogous trait. Birds and fish are both vertebrates and possess many homologous traits. IPv4 allows for a total of 4. These animals do not share a common ancestor, and developed the trait for wings independent of one another. These are seen in organisms that are closely related. The similarities and differences between are compared. Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Objectives: Differentiate between homologous and analogous structures and give examples of each. In the earliest. The anatomy of the homologous structures is similar while the anatomy of the analogous structures is dissimilar. Non sono state trovate discussioni con "analogous" nel forum Italiano-inglese. They appear to be similar in structure. Wings of insects, bats, and birds are the example of analogous structures. Free learning resources for students covering all major areas of biology. Note: The recent discovery of deep. Bitte laden Sie hier die PDF-Version herunter. So far this year, students have learned about two laws (Law of. Note the time! One hour earlier than our usual lecture time. That is because a homologous structure is something that is inherited from a common ancestor, even if they don't look or function alike. The penguin's wings and the leg bones of snakes are. It uses its teeth to chew through tree trunks. Are similarities between sharks and dolphins homologous or analogous? (Also, submit your answer) Click “next”. Considering all of the evidence, are the "wings" (actually flaps of skin stretched between the legs) of sugar gliders and flying squirrels homologous or analogous structures? Explain why you would conclude this. We'll talk about the differences and similarities right here in less then 2 minutes!. Both herrings and dolphins are streamlined. Evidence is shown in Homologous and Vestigial Structures, Biogeography, Observed Evolution, DNA, Fossils, Comparative Anatomy, and Embryology. Some of the major Differences between divergent evolution and convergent evolution are as follows: Divergent Evolution: 1. Record in the box under the “X”. The two species I choose for the Homologous Trait is the human arm and a seals flipper. An analogous structure. Contrast with homologous structures. Flying wings are examples of convergent evolution (analogous structures); however the bones in vertebrate wings are examples of divergent evolution (homologous structures) Analogous Structures: have the same appearance, structure or function but have evolved separately, thus do not share a common ancestor. These findings led. Homologous Structures. For example, the bones on the front fins of a whale are homologous to the bones in a human arm and both are homologous to the bones in a chimpanzee arm. Free Online Library: Homologous versus antithetic alternation of generations and the origin of sporophytes. The limbs above are homologous structures, having similar bones. Differentiate between homologous and analogous structures Identify both upper and lower limbs of different species that are similar but different in shape or function To unlock this lesson you. Examples of analogous structures are wings of a butterfly and wings of a bird which perform the same function but are. •Ex •Wisdom Teeth •Goose bumps vs body hair. So, convergent evolution evolves analogous organs. Analogous Structures-- humerus ulna radius carpal metacarpal phalanges whale VI bird 0B _ ctocodile bat Examine the butterfly wing and the bird wing shown below. The limbs of a human and the limbs of a cat are homologous structures. A video discusses the appendix, tail bone, wisdom teeth, and more. H = Homologous structure V = Vestigial structure A = analogous structure Description t on on n um 1 In the ocean surrounding Antarctica, there are fish that survive the cold water by using a molecule made of. Record in the box under the “X”. Hint: Birds and mammals. While they are similar in structure and function, these organisms do not have a common ancestor, such that they are analogous. The two species I choose for the Homologous Trait is the human arm and a seals flipper. Find descriptive alternatives for analogous. wolf tail and lion tail. Ringkasan - Struktur Homologous vs. This is usually met with giggles, but I remind the students that this is science. This study guide has now been updated for Fall 2019. Identify the term that is used to describe. The bones of a human's front limb (left) are homologous to the bones of a bat's front limb (right). Homologous structures are like bird wings and bat wings, while analogous structures are like dolphin and shark body plans. An example of this is the wings of bats and birds. Thus, these organs are homologous as one can follow the gradual changes in morphology and find continuity between the fin to leg to fin transitions. That was a great comparison and yes, their common ancestor would be an early tetrapod, most likely an early reptile. Considering all of the evidence, are the "wings" (actually flaps of skin stretched between the legs) of sugar gliders and flying squirrels homologous or analogous structures? Explain why you would conclude this. It's as if OP is asking whether your head and my head are homologous or analogous. different structure. homologous structure definition: The definition of a homologous structure is an organ or body part that appears in different animals and is similar in structure and location, but doesn't necessarily share the same purpose. There are many pieces of evidence that help scientists to support the theory of evolution. The wings of a dragonfly and of a bird are analogous, and, in fact, are also analogous to the wings of a 747. What is a homologous structure? 4. Showing top 8 worksheets in the category - Homologous Structures And Analogous Structures Web Quest. Example: Whale fin vs. analogous structure. Examples of these types of structures are the wings of birds, bats and insects. HOMOLOGOUS. A charac-teristic feature of all these triplexes is that the two chemically homologous strands (both pyrimidine or both purine) are antiparallel. The classic example of homologous structures are the bones of limbs in vertebrate animals. Evidence for Evolution: Homologous & Analogous Structures Gathering Information: Using COMPLETE SENTENCES answer the following questions. hybridization b. Analogous structures=evidence of convergent evolution. This level of structure describes how regions of secondary structure fold together – that is, the 3D arrangement of a polypeptide chain, including a helices, b sheets, and any other loops and folds. The classic textbook example of analogous structures is that of wings in the animal kingdom. b) The analogous trait that they share are their eyes. What are analogous structures? List an example. Analogous Structures and Convergent Evolution Of course, structures can look the same for reasons other than common ancestry. Analogous means they perform the same function but have different evolutionary lineages. The bones in the wings of a bat, dog paws/legs, human hands, whale flippers - all homologous and have metacarpels and phalanges. For example, the pentadactyl limb of vertebrates has the same arrangement of bones in a bat's wing, a human arm, a dolphins flipper and a mole's claw. Analogous structures have the same function, but different structures- the wing of a bird and the wing of an insect are analogues. that involved similar functions but had a difference in structure. ONLY! Extra credit if you finish both worksheets and then draw a scenario (with at least 3 pictures) where genetic resistance occurs. A vestigial structure is an atrophied one that no longer serves a useful function. different functions. By comparing homologous structures, biologists can determine how organisms might be related. For example, the pentadactyl limb of vertebrates has the same arrangement of bones in a bat's wing, a human arm, a dolphins flipper and a mole's claw. A common example of homologous structures is the forelimbs of vertebrates, where the wings of bats, the arms of primates, the front flippers of whales and the forelegs of dogs and horses are all derived from the same ancestral tetrapod structure. A homologous pair is when a homologous sequence is separated by a gene duplication event, such as when a cell is going through mitosis, meiosis," homologous recombination, a retreotransposition. Homologous structures, such as the fins of whales and the hands of monkeys, demonstrate that while a species may use structures for different purposes, the species shared a common ancestor. As adjectives the difference between heterologous and homologous is that heterologous is having different relationships or different elements while homologous is showing a degree of correspondence or similarity. Examples include the wings on butterflies, bats, and birds. arrowBoth The inner ear bones of mammals have evolved from bones that form the jaws of reptiles. that involved similar functions but had a difference in structure. The mole uses strong paddle-shaped feet for burrowing, and its large ear openings give it excellent hearing. Homologous structures, on the other hand, are characteristics which are shared by related species because they have been inherited in some way from a common ancestor. The wings of a dragonfly and of a bird are analogous, and, in fact, are also analogous to the wings of a 747. Homologous vs. Homologous structures are the structures derived from a common ancestor which have similar morphology and anatomy and different functions. Both herrings and dolphins are streamlined. The limbs above are homologous structures, having similar bones. The dorsal fins of sharks are rigid, and supported by cartilage internally. Homologous structures: are structures with different appearances and functions that all derived from the same body part in a common ancestor. Provide an example of a homologous structure to the penguin fin in another organism. This chapter deals with the homologous structures in the nervous systems of Arthropoda. Homologous Characters. Analogous Structures are evidence of independent evolution. Analogous structures are those structures in different species which perform the same function. Information from homologous structures, similarities in DNA, similarities in early development, and the fossil record are all used by scientists as evidence for evolution and to determine if organisms share a common ancestor. For example, the pentadactyl limb of vertebrates has the same arrangement of bones in a bat's wing, a human arm, a dolphins flipper and a mole's claw. For instance, the forelimbs of humans and bats are homologous structures. Structure may or may not match function or appearance. Sharks and dolphins are made up of eukaryotic cells; their common ancestor remains a mystery, and most of their similarities are analogous structures. Station #2 - Homologous vs. Give an example. homologous characters vs analogous characters ^ homologous characters h. Similar traits can be either homologous or analogous. These organisms possess analogous structures. Both humans and whales are mammals, and all mammals have this limb structure, so yes, this was inherited from a common ancestor, with differences evolving due to environmental changes. Information from homologous structures, similarities in DNA, similarities in early development, and the fossil record are all used by scientists as evidence for evolution and to determine if organisms share a common ancestor. homologous structure. homologous structure a trait found in two species that inherited if from the same common ancestor; any differences result from adaptive radiation analogous structure. Previous studies have shown that the PDB library is complete for single-domain proteins and TBM is in principle sufficient to solve the structure prediction problem if the most similar structure in. Both herrings and dolphins are streamlined. Not until the latter half of the 20th century, when it became possible to analyze and compare DNA, could researchers reaffirm the evolutionary relatedness of species with homologous structures. Examples include the wings on butterflies, bats, and birds. Thus, these organs are homologous as one can follow the gradual changes in morphology and find continuity between the fin to leg to fin transitions. Sqworl makes it easy to organize and share multiple links with just one url. Homologous Structures (flowers)Broccoli and Cauliflower evolved from Mustard. Homologous structures Analogous structures Vestigial structure Species Behavioral isolation Temporal isolation Geographic isolation 11. As compared to homologous. of Questions= 13 INSTRUCTIONS: To answer a question, click the button in front of your choice. Easy and clean visual bookmarking for educators. The bones in the wings of a bat, dog paws/legs, human hands, whale flippers - all homologous and have metacarpels and phalanges. structure ! Examples of analogous structures that arose via convergent evolution • Insects and birds have no common ancestor with wings! Thus, their wings are analogous structures! Homologous vs. Main Difference - Homologous vs Analogous Structures. Sie können die PDF-Version dieses Artikels herunterladen und gemäß den Zitierhinweisen für Offline-Zwecke verwenden. Same structure, different function d. Although the basic plan is the same (single bone, two parallel bones, a block of bone. homologous: 1 adj corresponding or similar in position or structure or function or characteristics; especially derived from an organism of the same species "a homologous tissue graft" Antonyms: heterologous derived from organisms of a different but related species autologous derived from organisms of the selfsame individual show more. Similarities and differences: understanding homology and analogy. Quiz by AUnger. Analogous structures (e. For example, the extremities of a dog and a dolphin, are homologous, have similar bones, only that some adapted to the race and others to swimming. Download PDF-Version von Homologous vs Analogous Structures. The similarity is in regards to the form that the structure takes as well as the function it performs. Homology vs analogy. My book says that their wings serve same function and have similar structure but they evolved independently. However, some traits have the same function, but very different structures and developmental backgrounds. These structures are called analogous structures. vestigial structures. Unlike analogous structures that may not necessarily represent similar evolutionary paths, homologous structures represent similar. Homologous Structures. The structures of both these types of wings is very different but yet the wings both give the bird and insect the ability to fly. originating from a common ancestor). Introduce the vocabulary associated with the lesson: comparative anatomy, vestigial structure, homologous structure, comparative embryology, analogous structures, derived traits, ancestral traits, and morphology. , bat wings and fly wings) come from unrelated genetic sequences. Displaying top 8 worksheets found for - Homologous Structures Vs Analogous Structures. vestigial-structure definition: Noun (plural vestigial structures) 1. homologous structure definition: The definition of a homologous structure is an organ or body part that appears in different animals and is similar in structure and location, but doesn't necessarily share the same purpose. Structures that evolved independently in different lineages are not homologous but analogous. modification of a species d. modified structure. Examples include the wings on butterflies, bats, and birds. This chapter deals with the homologous structures in the nervous systems of Arthropoda. arrowBoth The inner ear bones of mammals have evolved from bones that form the jaws of reptiles. Homologous vs. Two completely different species, the cat from the feline species and the dog from the canine species both posses the trait of a paw. bat wings and bird wings) come in is that they utilize the same basic genes - modified over time, in this case those coding for the tetrapod forelimb. In this article, we look at the various differences between homologous and analogous. homologous character different structure analogous character. These structures are called analogous structures. Divergent kind has the Homologous structure (means structure are same, but functions are different), despite appearing similar to ancestors. Wings of butterfly bird and bat. What is anatomy? 2. They both have evolved from the same ancestry some time in.