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Another example of analogous structures are dolphins and sharks as whole species. Although we might think of dolphins and sharks as being relatively similar, their morphology says otherwise. Dolphins are mammals that have live births and have fins with a homologous structure to human arms.Fins of fish and flippers of whales are analogous organs. They perform the same function but they have different basic structure.Analogous Structures
Sharks and dolphins are similar in construction because they need their “parts” to complete many of the same functions. For example, the dorsal fins that are found on both sharks and dolphins are due to convergent evolution; they are not from a common ancestor.
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Homology or convergent trait?
| Sharks | Dolphins |
|---|---|
| skeleton made of cartilage | skeleton made of bone |
Are dolphin fins analogous?
Another example of analogous structures are dolphins and sharks as whole species. Although we might think of dolphins and sharks as being relatively similar, their morphology says otherwise. Dolphins are mammals that have live births and have fins with a homologous structure to human arms.
Are fins homologous or analogous?
Fins of fish and flippers of whales are analogous organs. They perform the same function but they have different basic structure.
Why are sharks afraid of dolphins?
Images related to the topicWhy are sharks afraid of dolphins?
How does a shark and dolphin share analogous structures?
Analogous Structures
Sharks and dolphins are similar in construction because they need their “parts” to complete many of the same functions. For example, the dorsal fins that are found on both sharks and dolphins are due to convergent evolution; they are not from a common ancestor.
How closely are sharks and dolphins related?
We know that dolphins and sharks are not closely related, and they didn’t inherit their similar body shapes from a common ancestor. Their streamlined bodies, dorsal fins and flippers are the result of convergent evolution.
Is a shark fin homologous?
Analogous structures are similar structures in unrelated organisms. These structures are similar because they do the same job, not because they share common ancestry. For example, dolphins and sharks both have fins, even though they aren’t related. Both species developed fins because of how (and where) they live.
Are dolphins and fish homologous or analogous?
Homologous-Dolphins are mammals and fish are not, thus their evolutionary paths are quite separate. They have similar body shapes because of their similar environment.
Is a dolphin flipper a homologous structure?
A dolphin’s flipper, a bird’s wing, a cat’s leg, and a human arm are considered homologous structures.
See some more details on the topic Are shark fins and dolphin fins analogous? here:
Are the similarities between sharks and dolphins homologous …
Sharks’ and dolphins’ similarities (body shape, fin, and flippers) are analogies — traits that each lineage evolved independently. Are sharks …
Homologous vs. Analogous Structures (Video) – Mometrix Test …
Both dolphins and sharks use their fins to swim and have bodies that are streamlined for an aquatic environment. In fact, it was likely the …
Dolphins V. Sharks – Analogous Structures by Lord Henry – Prezi
Analogous Structures · Typically solitary · Have two dorsal fins · Are cartilaginous fish, need oxygen from water, through gills · Cold-blooded · Have tails with …
Why is fin of shark, wing of birds and flipper of dolphin called …
Dorsal fins of dolphins & sharks = analogous but NOT homologous (serve same purpose but evolved completely independently) · pectoral fin of dolphin & bird wing = …
Are whales and sharks homologous?
Some whales have single-pointed teeth like sharks, and some sharks have live births, like whales. None of these features were inherited by both these species from their most recent common ancestor. Instead, such non-homologous similarities are examples of homoplasy.
Are the fins of fish and whales homologous structures?
The fin of a fish and the filpper of a whale are analogous structures. They have the same job ( function) but different internal structures. This suggests that the DO NOT share a recent common ancestor.
What do sharks and dolphins have in common?
Dolphins and sharks both have dorsal fins on their backs, two pectoral fins on their sides, and a tail.
What are the examples of analogous?
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. The presence of the analogous structure, in this case the wing, does not reflect evolutionary closeness among the organisms that possess it.
What are analogous structures?
Analogous structures are features of different species that are similar in function but not necessarily in structure and which do not derive from a common ancestral feature (compare to homologous structures) and which evolved in response to a similar environmental challenge.
Homologous analogous structures | Heredity Evolution | Biology | Khan Academy
Images related to the topicHomologous analogous structures | Heredity Evolution | Biology | Khan Academy
What is the difference between shark and dolphin fins?
The dolphin’s dorsal fin is curved backward toward the animal’s rear. It has a definite arc, with a sharply curved tip. A shark’s dorsal fin is broad and stands straight up from the animal’s back. The front edge of a shark fin is angled backward, while the rear edge is straight.
What evolutionary pattern sharks and dolphins can be considered?
Convergent evolution is when different organisms independently evolve similar traits. For example, sharks and dolphins look relatively similar despite being entirely unrelated.
Can a shark and a dolphin have babies?
Shark-dolphin hybrids are impossible. It’s true that sharks and dolphins look similar in many ways, but that’s because they are a product of convergent evolution, where two genetically distant animals who live similar lifestyles start to look and act in similar ways. But sharks are fish and dolphins are mammals.
What are homologous and analogous?
Structures with similar anatomy, morphology, embryology and genetics but dissimilar functions are known as homologous structures. Structures that are superficially similar but anatomical dissimilar doing the same function are known as analogous structures.
Why whale flippers are analogous to shark fins and Penguin wings?
These similarities form because the animals either live in comparable environments or they experience the same environmental pressures, resulting in the evolution of these features.
Why are these structures considered analogous?
Analogous structures are structures that are similar in unrelated organisms. The structures are similar because they evolved to do the same job, not because they were inherited from a common ancestor. For example, the wings of bats and birds, shown in Figure below, look similar on the outside.
What is an analogous trait?
Analogous structures are traits shared by species that live in the same environment but are not related to each other.
What are some homologous structures?
A common example of homologous structures is the forelimbs of vertebrates, where the wings of bats and birds, the arms of primates, the front flippers of whales and the forelegs of four-legged vertebrates like dogs and crocodiles are all derived from the same ancestral tetrapod structure.
What is the difference between a homologous trait and an analogous trait?
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.
Why do flippers of penguins and dolphin are considered analogous structure?
Flippers of penguin and dolphin have a similar function (helps in swimming) but different origin so they are called analogous organs. Penguin and dolphin are not closely related to each other but evolved similar traits (flippers) which represent convergent evolution.
Homologous Structures vs Analogous Structures | Key Differences
Images related to the topicHomologous Structures vs Analogous Structures | Key Differences
Why do flippers of penguin and dolphin are considered analogous structure a Absent of certain bones?
Unlike having wings like other birds, penguins have tapered, flattened flippers for swimming. – Both the organisms Dolphin and Penguin are analogous in nature because the flippers they have, do similar functions but their origin is different so comes in the category of analogous.
Which of the following structures are analogous but not homologous to each other?
So, the correct answer is ‘Penguin wing and seal flipper‘
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