How is a cladogram constructed?Multiple choice question.By using shared derived characters to construct clades within cladesBy organizing species along a horizontal line representing the geological time at which they first evolvedLike a flow chart, with evolutionary pathways leading to phenotypic traitsBy identifying disparate groups of organisms based on similar phenotypic traits
Question
How is a cladogram constructed?Multiple choice question.By using shared derived characters to construct clades within cladesBy organizing species along a horizontal line representing the geological time at which they first evolvedLike a flow chart, with evolutionary pathways leading to phenotypic traitsBy identifying disparate groups of organisms based on similar phenotypic traits
Solution
A cladogram is constructed by using shared derived characters to construct clades within clades. This method involves grouping organisms based on the unique characteristics they share, which are not found in their ancestors. These shared derived characters are used to form a clade, which is a group of organisms that includes an ancestor and all its descendants. The process is repeated, with clades being grouped into larger clades based on shared derived characters, until a cladogram is formed.
Similar Questions
What does a cladogram depict?Multiple choice question.A hypothesis of evolutionary relationshipsThe taxonomic hierarchy of a related group of organismsThe mechanisms that led to evolution of different character states
When constructing a cladogram, what is the advantage of using a statistical approach, such as maximum likelihood, rather than relying on parsimony alone?Multiple choice question.Different rates of evolution can be used for different characters.Both symplesiomorphies and snapomorphies can be used to provide information about evolutionary events.The timing of evolutionary events can be determined.
In a cladogram, what word describes an ancestral species and all of its descendants?Multiple choice question.SynapomorphyTaxonCladeOutgroup
A requirement of cladistics is that a grouping must include ________.species that can interbreedonly living speciesa common ancestor and all its descendantsspecies with shared traits
Which of the following statements is true for all of the species that come after a branch point in a cladogram?Multiple choice question.They will no longer need an outgroup.They will share at least one shared derived character.They will share at least two shared derived characters.They do not share any derived characters.
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