How does the theory of evolution explain how a similar bone structure can lead to different forelimbs?

Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. They inherited this pattern from a common ancestor. However, their forelimbs now have different functions. The forelimbs of all mammals have the same basic bone structure.

What do the similarities among the forelimb bone arrangement of these diverse animals imply?

14, What do the siinilarities among the forelimb bone arrangement of these diverse animals imply about their ancestry? That the information used to create the forelimb is similar and the organisms may share a common ancestor.

How are the limbs similar What do you call the species that are different but the features are similar?

Homologous structures are similar physical features in organisms that share a common ancestor, but the features serve completely different functions. An example of homologous structures are the limbs of humans, cats, whales, and bats.

Does the similarity in bone structure suggest a common ancestry among these animals?

ANALOGOUS STRUCTURES ARRANGED SIMILARLY YES IT SUGGESTS A COMMON ANCESTRY. THE SPECIES ILLUSTRATED HAVE SIMILAR BONE STRUCTURES SUGGESTING COMMON ANCESTRY. HOWEVER THOSE STRUCTURES HAVE DIFFERENT FUNCTIONS DEPENDING ON EACH SPECIES’ ENVIRONMENT. THEY SHARE THE SAME FUNCTION.

What accounts for the similarities in some bone 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.

How do these similarities support the theory of evolution?

Multiple types of evidence support the theory of evolution: Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features).

What evolutionary pattern is most likely to have caused these limbs to evolve in this way?

Divergent evolution is the process in which a trait held by a common ancestor evolves into different variations over time. A common example of divergent evolution is the vertebrate limb. Whale flippers, frog forelimbs, and your own arms most likely evolved from the front flippers of an ancient jawless fish.

How does the similarity in embryos and genetic material determine common ancestry for some species?

Embryos of organisms that have a closer genetic relationship to one another tend to look similar for a longer period of time since they share a more recent common ancestor. Thus, embryology is frequently used as evidence of the theory of evolution and the radiation of species from a common ancestor.

How does comparative anatomy relate to evolution?

comparative anatomy, the comparative study of the body structures of different species of animals in order to understand the adaptive changes they have undergone in the course of evolution from common ancestors. Homologies of the forelimb among vertebrates, giving evidence for evolution.

How does comparing body structures of organism contribute to the study of evolution?

Scientists compare the anatomy, embryos, and DNA of living things to understand how they evolved. Evidence for evolution is provided by homologous structures. These are structures shared by related organisms that were inherited from a common ancestor. Other evidence for evolution is provided by analogous structures.

How does analogous structures support evolution?

Different species can evolve to become more similar While homologous structures show how similar species have changed from their ancient ancestors, analogous structures show how different species have evolved to become more similar.

What animals have limbs similar to the human arm?

Many mammals, for example, have similar limb structures. The flipper of a whale, the wing of a bat, and the leg of a cat are all very similar to the human arm, with a large upper “arm” bone (the humerus in humans) and a lower part made of two bones, a larger bone on one side (the radius in humans) and a smaller bone on the other side (the ulna).

Do all mammals have the same skeletal structures?

In the comparison shown below in diagram C, the same bones shared between humans, large cats, and horses are pointed out, it is clear that many mammals have very similar skeletal structures regardless of their form of locomotion.

How are humans and dogs similar in terms of locomotion?

In terms of locomotion, evolution has developed two very common forms of movement using the same muscles and bones. As shown below, humans and dogs share the same groups of bones and muscles even though they have completely different forms of locomotion.

How is evolution backed up by anatomical evidence?

Showing how body parts of one species resemble the body parts of another species, as well as accumulating adaptations until structures become more similar on unrelated species are some ways evolution is backed up by anatomical evidence.