Are dolphin fins and shark fins homologous?
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Are dolphin fins and shark fins homologous?
This means that sharks’ and dolphins’ similarities (body shape, fin, and flippers) are convergent traits that each lineage evolved independently.
What are homologous body 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. The forelimbs of all mammals have the same basic bone structure.
Which pair of structures shown above would be considered homologous?
dolphin’s flipper, bird’s wing, cat’s leg, and the human arm are considered homologous structures.
What are homologous organs give example?
Homologous organs : The organs which have the anatomically same structure but are different in functions are called homologous organs. Examples of homologous organs are as follows: Mouth parts of cockroach, honey bee, butterfly. Forelimb of man, whale, bat, cheetah.
Are dolphins homologous or analogous?
– 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 pairs of animals show a correct example of 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 homology to what are fins homologous quizlet?
Homology are “traits inherited from a common ancestor even if the functions of the traits are now different. Analogous (non-homologous) traits are developed by convergent evolution selected by environment independently. the flippers of a porpoise and the pectoral fins (front fins) of a salmon are homologous C.
What are the homologous and analogous organs?
Test your Knowledge on Homologous And Analogous Organs!…Homologous vs Analogous Structures.
Homologous Structure | Analogous Structure |
---|---|
An arm of a human, the leg of a dog or a flipper of a whale are all homologous structures | From wings in birds, bats and insects to fins in penguins and fishes are all analogous structures |
How are homologous organs different from analogous organs?
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. These structures are not analogous.