What is the primary purpose of a phylogenetic tree?

Phylogenetics and Evolutionary Relationships

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Biology
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9th - 10th Grade
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Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To illustrate the relatedness of species through common ancestry
To depict the dietary habits of different species
To show the geographical distribution of species
To display the population size of species over time
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of homologous structures?
Wings of birds and dragonflies
Feathers of modern birds and fossilized feathers
Fins of fish and flippers of whales
Leaves of trees and petals of flowers
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a synapomorphy?
A character that appears due to environmental factors
A trait that has been lost in a species
A derived character shared by members of a clade
A trait unique to a single species
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does out-group analysis help in phylogenetics?
By analyzing the dietary habits of ancestral species
By determining the population size of ancestral species
By comparing traits of the in-group with a closely related out-group
By identifying the geographical origin of species
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a cladogram?
A map of species geographical distribution
A chart of species population sizes
A phylogenetic tree based on synapomorphies
A diagram showing the timing of evolutionary events
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What challenge does convergence pose in phylogenetic tree construction?
It affects the understanding of species dietary habits
It makes it difficult to determine the geographical origin of species
It can lead to incorrect assumptions about shared derived traits
It complicates the measurement of species population sizes
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What revolutionized phylogenetics in the 1970s?
The use of molecular methods like DNA comparisons
The discovery of new fossil records
The introduction of new dietary analysis methods
The development of new geographical mapping techniques
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