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What is the best evidence that all life evolved from prokaryotic rather than eukaryotic ancestors?
One strong piece of evidence is that prokaryotic organisms are simpler and have fewer complexities compared to eukaryotes. Additionally, fossil evidence indicates that prokaryotic organisms appeared much earlier in the Earth's history than eukaryotic organisms. Genetic analyses also suggest a closer relationship between prokaryotes and the common ancestor of all life.
Why do scientists believe that birds evolved from dinosaurs?
Scientists believe birds evolved from dinosaurs because of several pieces of evidence, such as shared skeletal features, fossil records of "transitional" bird-like dinosaurs, and genetic similarities. These connections suggest that birds are the descendants of a group of small theropod dinosaurs.
When did vascular plants most likely evolve What is the evidence for the time scale?
Vascular plants most likely evolved around 400-450 million years ago during the Ordovician period. Fossil evidence, including early vascular plant fossils such as Cooksonia, suggests that these plants emerged during this period. Additionally, molecular clock studies also support this time frame for the evolution of vascular plants.
What did Birds evolved from?
Birds are believed to have evolved from theropod dinosaurs during the Mesozoic era. The fossil record shows a gradual transition from small, feathered dinosaurs to early bird species, which eventually led to the wide diversity of bird species we see today.
How are fossil records pieces of evidence for evolution?
The change over time that is the definition of evolution is quite well illustrated in the fossil record, especially at the level of higher taxa. The simplicity that becomes multicelled complexity is well written into the mineralization of the fossils left behind over the millions of years.
Fossil evidence suggest homo sapiens first appeared how many years ago?
Fossil evidence suggests that Homo sapiens evolved around 300,000 years ago in Africa.
What are 2 types of evidence that suggest that evolution has occured?
Accept fossil evidence, anatomical evidence, molecular evidence
When did dolphins appear on earth?
Fossil records suggest that dolphins evolved around 10-15 million years ago during the Miocene epoch. They are believed to have evolved from land-dwelling mammals that returned to the sea.
How the fossil record indicates a long history of changing life forms.?
The fossil record shows that different species have evolved over time. The fossil record also provides evidence of how a specific organism evolved from earlier species. The fossil record shows that organisms have become more complex over time. It also shows which organisms lived during the same time period, which have a common ancestor, and which have become extinct.
What does the fossil record reveal about new species of organisms?
They evolved over time from older species.
What are the three types of evidence that suggest various organisims are related through common descent?
The three types of evidence that suggest organisms are related through common descent are anatomical evidence (similarities in body structures), molecular evidence (similarities in DNA sequences), and fossil evidence (transitional forms showing evolutionary changes over time).
How did birds evolve from reptiles?
But they did. Specifically, birds evolved from a subgroup of dinosaurs (which were reptiles) known as theropods. There is a lot of fossil and anatomical evidence for this.
What does fossil evidence indicate about the order in which these three vertebrates evolved a bony fish with a jaw a jawless fish and a fish with leglike fins?
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What is the best evidence that all life evolved from prokaryotic rather than eukaryotic ancestors?
One strong piece of evidence is that prokaryotic organisms are simpler and have fewer complexities compared to eukaryotes. Additionally, fossil evidence indicates that prokaryotic organisms appeared much earlier in the Earth's history than eukaryotic organisms. Genetic analyses also suggest a closer relationship between prokaryotes and the common ancestor of all life.
Why do scientists believe that birds evolved from dinosaurs?
Scientists believe birds evolved from dinosaurs because of several pieces of evidence, such as shared skeletal features, fossil records of "transitional" bird-like dinosaurs, and genetic similarities. These connections suggest that birds are the descendants of a group of small theropod dinosaurs.
What does evidence suggest about the human origins?
Evidence suggests that early humans evolved in Africa around 200,000 years ago. Fossil discoveries and DNA analysis support the theory that modern humans, Homo sapiens, originated in Africa and eventually migrated to other parts of the world. Genetic studies show a common ancestry among all modern humans.
When did vascular plants most likely evolve What is the evidence for the time scale?
Vascular plants most likely evolved around 400-450 million years ago during the Ordovician period. Fossil evidence, including early vascular plant fossils such as Cooksonia, suggests that these plants emerged during this period. Additionally, molecular clock studies also support this time frame for the evolution of vascular plants.
