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What is the best evidence that organisms of two different species share a common ancestor?
Wiki User
∙ 11y ago
1. common genetic sequences between animals
2. fossils that have similar bone structures
3. geographic similarities between animals
4. embryonic similarities
Wiki User
∙ 13y ago
The best evidence that organisms of two different species share a common ancestor is the presence of homologous structures. These structures have similar features due to shared ancestry, even if they serve different functions in different species. Additionally, similarities in DNA sequences and developmental patterns can indicate a common evolutionary history.
Wiki User
∙ 11y agoTheir genomes.
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How does the idea of a common ancestor help support the theory of evolution?
The concept of a common ancestor in evolution suggests that all life on Earth shares a common origin, providing a framework to explain the diversity of species through gradual changes over time. It supports the theory of evolution by showcasing the interrelatedness of all organisms and the branching patterns of descent that have led to the vast array of species we observe today. By tracing back to a common ancestor, scientists can understand the evolutionary relationships among different species and how they have diverged and adapted over time.
What homologous structures in different species evidence of?
Homologous structures in different species are evidence of a common evolutionary ancestry. These structures have a similar origin, but may have different functions in different species. Studying homologous structures helps researchers understand how species have diverged and evolved over time.
How are organisms in a species different from othes in their genus?
Organisms in a species share more similar characteristics and can interbreed to produce viable offspring, whereas organisms in the same genus may have more differences but still share some common characteristics. Species are a more specific group than genus. Organisms in the same genus are more closely related than organisms in different genera.
Is family and species the same?
No, family and species are not the same. In the classification system, species is the most specific level and represents individual organisms that share similar traits and can interbreed. Family is a higher taxonomic rank that groups similar species together based on a common ancestor.
Is genus same as species?
No, genus and species are different taxonomic ranks in the classification of organisms. A genus is a group of related species, while a species is the most specific level of classification representing a group of organisms that interbreed and produce fertile offspring.
What Different types of Evidence used when comparing plant species?
Physiological similarities suggest the species evolved from the same ancestor.
The occurrence of the same blood protein in a group of species provides evidence that these species?
descended from a common ancestor
Phylogenetic trees are visual representations of .?
ancestral relationships of organisms Plato users c
How would you know if organisms shared a common ancestor?
The closer the DNA pattern (the nucleotide base pairing), the closer the species from a common ancestor.
How does comparing physiological similarities of living species provide evidence of?
Physiological similarities suggest the species evolved from the same ancestor.
What does it mean for species to have an evolutionary relationship?
If two organisms share an evolutionary relationship, that means that they have a common ancestor on the evolutionary tree. The more recently the shared common ancestor lived, the more closely related the two present organisms are, evolutionarily.
Why do you think the domestic dog is an ancestor of the gray wolf?
The genetic evidence is quite clear on this question. With great certainty we can say the domestic dog has only the gray wolf as ancestor.
Similarity of structure of the forelimb of a bird and a mammal is an example of what evidence?
Homologous structures - the forelimb structures are anatomically similar and were derived from a common ancestor; however, they have evolved completely different uses. This provides evidence for divergent evolution or adaptive radiation.
Does territorial behavior extend to organisms of different species?
Yes, territorial behavior extends to organisms of different species.
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.
When classifying organisms a monophyletic group includes?
A group of species that consists of a common ancestor and all of its descendants (also referred to as a clade).
How are organisms in a species different from others in genus?
Organisms in a species have characteristics that differ from those of other organisms in their genus.
