Phylogenetic Trees (VCE SSCE Biology): Quizzes
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Practise the questions
10 questions from this quiz
What is a phylogenetic tree?
What is a phylogenetic tree?
A diagram showing evolutionary relationships
What are the four main components of a phylogenetic tree?
What are the four main components of a phylogenetic tree?
Roots, branches, nodes, leaves
What does a node represent on a phylogenetic tree?
What does a node represent on a phylogenetic tree?
A speciation event
What does the root of a phylogenetic tree represent?
What does the root of a phylogenetic tree represent?
Most recent common ancestor of all members
How do you find the closest relative to a species on a phylogenetic tree?
How do you find the closest relative to a species on a phylogenetic tree?
Trace back to the first node encountered
When a timescale is present on a phylogenetic tree, what does branch length represent?
When a timescale is present on a phylogenetic tree, what does branch length represent?
Time
When constructing a phylogenetic tree from traits, which traits should be used first?
When constructing a phylogenetic tree from traits, which traits should be used first?
Traits shared by most organisms
What do polytomies (multiple splits from one node) indicate?
What do polytomies (multiple splits from one node) indicate?
Uncertainty about divergence order
How are extinct species shown on a phylogenetic tree?
How are extinct species shown on a phylogenetic tree?
Branches not extending to the present
What does a line connecting branches represent?
What does a line connecting branches represent?
Genetic exchange between groups