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What is the purpose of a cladogram?
To map the ancestral relationships and shared traits of different organisms.
To trace the inherited traits of a single species over time.
To check the likelihood of an offspring having a particular trait.
To monitor mutations that arise among different populations.
How has technology helped us in understanding evolutionary relationships?
We can travel back in time to observe different organisms in their habitats.
We clone different organisms using DNA from fossils so we can bring them back and observe.
We can now compare the DNA of different organisms to help determine the relationships between them.
We can follow different organisms on Twitter to look for similar traits and characteristics.
How can a cladogram be used to show how closely related two organisms are?
The further apart two organisms are on a cladogram the more they have in common.
If two organisms are next to each other on a cladogram then they must be the same species.
All organisms share a common ancestor.
You can use a cladogram to see how many traits two organisms have in common. The more in common, the more closely related they are.
What traits do most mammals share? Check all that apply.
Produce Milk for their young
Endothermic (Warm Blooded)
A branched diagram that shows ancestry, or how you and your relatives have descended from common relatives.
A “family tree” made by scientists to show relationships of ancestry and similar traits between organisms.
Scientific Family Tree
What characteristics do all of these animals have in common?
What do both the squirrel and lion have in common that the other animals do not?
They are both vertebrates
They both have lungs
They are both mammals
They both lose their canine teeth.
Is a bird more closely related to a prosimian or to an amphibian?
Birds are more closely related to prosimians because they have more in common.
Birds are more closely related to amphibians because they have more in common.
What do amphibians, birds, prosimians and humans all have in common? Check all that apply.
According to this cladogram, what characteristics do prosimians have in common with humans?