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How does comparative anatomy not support evolution?
The comparisons between the anatomies of various organisms show common ancestry which supports evolution.
List the evidences for animal evolution?
Fossil evidence: The fossil record shows gradual changes in animal forms over time, providing direct evidence of evolution. Comparative anatomy: Similarities in the anatomy of different animal species suggest common ancestry and evolutionary relationships. Comparative genetics: DNA and molecular studies show similarities in genes between different animal species, providing further evidence of shared evolutionary history.
How comparing the anatomy and development of living species provides evidence of evolution?
Comparative anatomy and evolutionary development have shown the connection between species; both the near and far connections. Look at the bones in your arm and then at the foreleg bones of your cat or dog and see how evolutionarily close the both of you are. The HOX genes between you and fruit flies, the control genes for making bodies, show that you and flies share common ancestry as suggested by evolution.
Charles Darwin observed that instead of being perfect and unchanging individuals in a species show what?
Individuals in a species show variation, which is a key concept in Darwin's theory of evolution. This variation can arise from genetic differences or environmental influences, and it provides the raw material for natural selection to act upon, leading to the evolution of species over time.
How is inference related to fossils?
Inference (deduction) is the process of determining a conclusion based on given evidence. Since we often can't know precisely what a prehistoric animal or plant looked like (unless it was completely preserved, as is the case with ice or amber), we have to take what bones, casts, molds, etc. that exist, and infer something about the plant or animal based on the structure and surroundings. For example, based on what we know about structure and function of various anatomies of existing animals, we can infer things about dinosaurs based on the bone structures found in their fossils. We can also determine whether they were predators or prey, whether they hunted or traveled in herds, in what class of animal we can group them, and so forth.
What is a homologous structure and what does it show?
== == Homologous provide evidence for evolution because it shows the similarities and how we evolved from the same ancestors
What is homolugous in evolution?
Homologous structures in evolution refer to features that have a similar underlying structure, indicating a shared ancestry despite potentially different functions in different species. These structures are thought to have evolved from a common ancestor and provide important evidence for the theory of evolution. Examples include the pentadactyl limb structure in vertebrates and the similar bone structure in the wings of birds and the limbs of mammals.
Why the homologous structures are evidence of evolutionary relationship?
They show similarities between organisms structure. if the similarities are large then it shows that those organisms share a common ancestor.
Describe how the following can be evidence for evolution. Fossil record geographic distribution of living things homologous structures vestigial structures embryology?
The fossil record shows transitional forms that link present-day species with their ancestors, providing evidence of evolutionary change over time. Geographic distribution can reveal patterns of related species in different regions due to their common ancestry and evolution in separate environments. Homologous structures across different species share a common anatomical origin, indicating a shared evolutionary history. Vestigial structures are remnants of once-functional traits that have lost their original purpose, reflecting an ancestral trait retained through evolution. Embryology can show similarities in the early stages of development among diverse species, reflecting their shared ancestry and evolutionary relationships.
Two species have homologous structures what do these homologous strcutures show about the evolutionary relationship between the two species?
The presence of homologous structures (for example, the bone structure in chimpanzee arms, human arms, and whale flippers) indicates that the species sharing that homologous structure share a common ancestor.
What is the difference between morphological divergence and homologous structure?
Morphological divergence refers to how different species evolve distinct physical characteristics over time. Homologous structures are similar traits found in different species due to a common ancestor. In essence, morphological divergence can lead to differences in body structures, while homologous structures show similarities in body parts across species.
How can DNA show some evidence of evolution?
DNA can provide evidence of evolution through the presence of homologous genes, which are genes shared among different species that originated from a common ancestor. Additionally, the similarity of DNA sequences between related species can show how closely they are related evolutionarily. Mutations in DNA can also accumulate over time, leading to genetic variation that drives evolutionary change.
Does the panda's thumb show evidence of poor design?
The panda's thumb does not show evidence of design, good or bad. It shows evidence of evolution.
Identify two ways that organisms can be compared to provide evidence of evolution from a common ancestor?
Comparing homologous structures, such as similar bone structures in vertebrate limbs, can provide evidence of evolution from a common ancestor. Comparing DNA sequences between different organisms can also reveal genetic similarities that support the theory of evolution from a shared ancestor.
Does homologous mean that structures are similar due to having common ancestry?
Yes, homologous structures are similar in form or function because they are inherited from a common ancestor. These structures may have different functions in different species, but their underlying similarity suggests they evolved from a common source.
What type of evidence sHow is that evolution has occurred?
Evidence for evolution includes the fossil record showing transitional forms, comparative anatomy showing similarities in structures among different species, genetic similarities among different species, and observed instances of natural selection leading to changes in populations over time.
Is fossil evidence used for the Theory of Evolution?
Fossils can be used as evidence for evolution because they can show the development of a species over a long period of time.
