Homologous structures.
Pigs and humans share anatomical similarities because they are both mammals with a similar evolutionary history. This similarity in structure can be attributed to a common ancestor that gave rise to both species. As omnivores, pigs and humans have adapted similar structures to support their dietary needs and lifestyle.
Two species are said to be related if they share a common ancestor. This means that they have evolved from a common predecessor and have similarities in their genetic makeup and physical characteristics. The degree of relatedness is determined by how recently they diverged from this common ancestor.
Dogs and insects both have apendages used for moving around, observing this similarity people use the same name to deceive all of them, legs. However to be homologous they must have been inherited by a shares ancestor (common ancestor). Going back in time from the dogs this is an ancestral creature earlier than the earliest vertabrates, before the bony fishes. Considering this it is easy to imagine these distantly related organisms (dogs and fish) did not both inherit the characteristic of having legs from a common ancestor. Therefor legs of dogs and insects are analogous, not homologous.
A evolutionary form of a bird. It had wings and feathers but still probably acted like a dinosaur but im not sure.
Snakes are related to reptiles, specifically belonging to the suborder Serpentes. They are cold-blooded animals that are closely related to lizards and share a common ancestor within the class Reptilia.
what is Similar structures that related species have inherited from a common ancestor
Homologous structures!
Homologous structures!
Homologous structures.
ancestor
DNA sequences
what is Similar structures that related species have inherited from a common ancestor
Some structures that related species have inherited from a common ancestor are homologous structures, which are similar in form and function but may have different appearances due to adaptations to different environments. Another example is vestigial structures, which are remnants of structures that were functional in ancestral species but have reduced or lost their original function in descendants. Analogous structures are also seen in related species, having similar functions but different origins, such as the wings of birds and insects.
Homologous 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. hope it helped
Why do scientists think related species have similar body structures and development patterns?
Homologous structures are similar structures that related species inherit from a common ancestor. These structures may have different functions in different species but share a similar underlying anatomy, suggesting shared evolutionary origins. Examples include the wing of a bird and the flipper of a whale, both being modified versions of the forelimb structure shared by their common ancestor.