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If you were a scientist examining the DNA sequence of two unknown organisms that you hypothesize share a common ancestor what evidence would you except to find?
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What are 2 ways that organisms can be compared to provide evidence of evolution from a commo ancestor?
Here's three: homologous genes, ERVs, and examining physical structures of the skeletal system.
The fact that all organisms have DNA as their genetic material is evidence that?
We all current life has a single common ancestor.
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.
Which organisms represent the common ancestor of all photosynthetic plastids found in eukaryotes?
Cyanobacteria
What is the best source of information on how an organism has evolved over time?
Its DNA as well as its ancestor organisms.
What are 2 ways that organisms can be compared to provide evidence of evolution from a commo ancestor?
Here's three: homologous genes, ERVs, and examining physical structures of the skeletal system.
Homologous structures in organisms suggest that the organisms?
common ancestor
Which organisms have possible common ancestor?
All of them
In the early 1800s Darwin studied 13 kings of finches what did Darwin hypothesize about these birds?
The finches were different species that shared a common ancestor
What are Descendant organisms?
Descendant organisms are organisms that share many in common because they share a common ancestor.
Why do scientist think green algae and plants have a common ancestor?
They share chlorophyll.
The fact that all organisms have DNA as their genetic material is evidence that?
We all current life has a single common ancestor.
How can you use classification to tell how closely organisms are related?
Scientists mainly compare similarities and differences in what the organisms look like. With the less obvious relations, they analyze their DNA. The goal is to find a common ancestor between the two organisms. The more recently that ancestor existed, the more closely related the organisms are.
What is an evolutionary?
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.
What is the definition of ancestral trait?
An ancestral trait is a trait that is shared by a group of organisms and their common ancestor. It is a characteristic that has been inherited from a common ancestor and has been passed down through generations without change.
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 do embryo help identify a common ancestor of different organisms?
we compared their bone.
