you finds a fossil of a creature from a certain timeline, then you find the same creature with some changes in a timeline later than the previous and if you have enough fossils you can see how the organism appears at its earliest place in the fossil record( some organisms only appear in the fossil record once they have evolved in a way that makes fossilization possible eg shell, jellyfish are very rare in fossils because they are mostly water) and see the organism change over time into a completely different animal through a series of consecutive glimpses of the creature.
Fossils provide evidence of species that lived in the past, showing gradual changes over time. The pattern of fossil evidence supports the idea of common ancestry and descent with modification, as predicted by Darwin's theory of evolution. By studying the fossil record, scientists can trace the development of various species and document the process of evolution.
The earliest fossils are of of stromatolites, bacterial mats of marine organisms some 3.5 billion years old. The earliest multicellular organisms (metazoans) date back close to three quarters of a billion years.
By half a billion years ago fish dominated the oceans, but the land remained barren. Within 50 million years plants and insects made a foothold out of the water. The earliest amphibians ventured into this rich new, uninhabited niche around 350 million years ago. These amphibians are all remarkably similar to sarcopterygian lungfish of that era (the Devonian).
Sail backed reptiles populated the Permian. Their forms diversified into a wider variety of creatures during the Triassic. Dinosaurs dominated the Jurassic and Cretaceous epochs. During this time, referred to as the Mesozoic, flowering plants (including grasses) were virtually unknown. The Cenozoic, the past 65 million years, is known as the age of the anthophyta (flower plants). It is also known as the age of mammals, as terrestrial forms widely diversified during this period also.
Fossils provide clear and abundant evidence for the gradual adaptation of species to new environments all across the globe. Darwin's theory is considered extremely sound, and forms the foundation of Biology. Indeed, famed biologist Theodosius Dobzhansky once explained that "nothing in biology makes sense except in the light of evolution."
The ways in which the fossil evidence supports common descent can be summarized into three items:
1. Fossils show that there have existed lifeforms that are quite different from those that exist now, and that the lifeforms that exist now did not exist in those times.
2. The fossil record shows a series of diverging progressions. For instance, the fossil record shows the emergence of tetrapods as a subset of the earlier existing lobe-finned fish, and subsequently various diverging lines of tetrapods. This pattern of diverging progressions can be seen at almost any scale, from the family to the kingdom. Examples: the trilobites.
3. The fossil records provide specific morphological intermediates, also known as 'transitional fossils'. Note that it is not necessary to establish positive proof for a direct line of descent in order to classify a fossil as intermediate. The term refers to its morphology, not its presumed ancestry or descendants. Simply put: in absence of a way to test the genomes of fossil forms for their genetic relatedness, evolutionary theory can still predict that there must have been a shape that's "halfway" between the earlier form and the newer form supposedly derived from that earlier form. The finding of such a shape is therefore considered strong evidence for the correctness of a proposed phylogeny. Examples: Tiktaalik roseae, Archaeopteryx lithographica, Ardipithecus ramidus.
Radioactive dating helps scientists determine the ages of rocks and fossils, which provide a timeline of Earth's history. By comparing the ages of different fossils and rock layers, scientists can trace the evolution of species over time. This timeline of evolution is a key piece of evidence supporting the theory of evolution.
One key piece of biochemical evidence supporting evolution is the similarity of genetic material across different species. For example, DNA analysis shows a high degree of similarity in the genes of humans and other primates, supporting the idea of a common ancestor. Additionally, the presence of vestigial structures and genes in organisms further supports the idea of evolution, as these features are remnants from ancestral forms.
Radioactive dating helps determine the age of fossils and rocks, providing a timeline of when different species lived. By comparing the ages of different fossils and rocks, scientists can establish the sequence of evolutionary changes and patterns of speciation over time, supporting the theory of evolution.
Fossil record: The transition of species over time, as documented through fossils, provides indirect evidence of evolution and common ancestry. Comparative anatomy: Similarities in the anatomical structures of different species, such as the pentadactyl limb in vertebrates, suggest a shared evolutionary history.
Fossils are evidence of biological evolution because they provide a record of past life forms, showing the progression of species over time. By studying fossils, scientists can trace the development and diversity of organisms, providing insight into how species have evolved and adapted to changing environments.
Fossils provide physical evidence of extinct organisms and show a progression of forms over time, supporting the concept of evolution through natural selection. Biochemicals, such as DNA and proteins, can be compared between different species to reveal shared genetic sequences, indicating a common ancestry and supporting the theory of evolution.
Radioactive dating helps scientists determine the ages of rocks and fossils, which provide a timeline of Earth's history. By comparing the ages of different fossils and rock layers, scientists can trace the evolution of species over time. This timeline of evolution is a key piece of evidence supporting the theory of evolution.
the answer is elemetary
biochemical evidence anatomical evidence fossils vestigial structure embryological evidence
Fossil evidence of evolution is not typically disproved, as fossils are considered crucial pieces of evidence in supporting the theory of evolution. However, the interpretation of fossil evidence can sometimes be open to debate or revision based on new discoveries or scientific understanding. Overall, the accumulation of diverse fossil evidence provides strong support for the concept of evolution and the relatedness of different species.
One key piece of biochemical evidence supporting evolution is the similarity of genetic material across different species. For example, DNA analysis shows a high degree of similarity in the genes of humans and other primates, supporting the idea of a common ancestor. Additionally, the presence of vestigial structures and genes in organisms further supports the idea of evolution, as these features are remnants from ancestral forms.
Fossils show the progression of ancient organisms. By comparing older fossils with more recent fossils, we can see how older ones are related in body structure to newer ones, supporting the idea that new generations evolve from older ones.
evidence in real time - finches fossil evidence evidence now backed up by genetics geological evidence of strata not just fossils
Yes, the fossil record is considered a valid and significant piece of evidence for evolution. Fossils provide a record of past life forms and show a progression of species over time, supporting the idea that organisms have changed and diversified through evolutionary processes. Additionally, the discovery of transitional fossils helps to fill in gaps and provide connections between different groups of organisms.
He noted the changes in the fossils over time, thus providing evidence for evolution.
Radioactive dating helps determine the age of fossils and rocks, providing a timeline of when different species lived. By comparing the ages of different fossils and rocks, scientists can establish the sequence of evolutionary changes and patterns of speciation over time, supporting 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.