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Homologous structures
Wiki User
∙ 10y ago
Wiki User
∙ 13y agoancestrial
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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.
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
Which theory was helpful to Darwin in the formulation of his theory of evolution?
The theory of common decent was one of the most helpful ideas in the formulation of the evolution of species. This theory acknowledges that to share common denominators there was a shared ancestor.
Examples of biochemical evidence of evolution?
Physiological similarities suggest the species evolved from the same ancestor.
Humans and gorillas have one different amino acid in their hemoglobin sequence. What does this say about the evolution of these two species?
Answer this question… They probably have a recent common ancestor.
What is the type of trait shared with a common ancestor?
A trait shared with a common ancestor is called an inherited or ancestral trait.
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.
What is derived characteristic?
A derived character is a trait that is shared by organisms with a recent common ancestor. It is also called as shared character.
What are the character states shared by the ancestor or outgroup of a clade called?
Character states shared by the ancestor or outgroup of a clade are referred to as plesiomorphies. These are ancestral traits that were present in the common ancestor of a group but are not unique to the members of the clade.
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.
Species that shared a common ancestor in the recent past have many?
traits
Name the last level at which dogs and humans shared a common ancestor?
Animalia
Why did Darwin think the finches he observed shared a common ancestor?
tu cola
What is the difference between derived trait and ancestral trait?
Derived traits are traits that appeared in the most recent common ancestor of the group and was passed on to it's decedents. Ancestral traits are inherited directly from the ancestor
When is the common ancestor of humans and chimps thought to have lived?
It's thought to be about 5 to 7 million years since humans and chimps shared a common ancestor.
What do the nodes in a cladogram represent?
it demonstrates freedom, liberty, and the persuit of happiness.
What is generally true of two sibling species?
They shared a common ancestor recently in evolutionary time.
