Multiple Choice
From the phylogenetic tree below, what can you infer from the branch lengths for the organisms Pakicetus, Rodhocetus, and Dorudon?
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25. Phylogeny
Phylogeny
Multiple Choice
Which is the best definition of a phylogenetic tree?
A
A diagram that represents the evolutionary relationships among different species based on their genetic or morphological characteristics.
B
A graphical representation of the food web in an ecosystem.
C
A chart that shows the population size of a species over time.
D
A table listing the classification hierarchy of organisms from kingdom to species.
Verified step by step guidance1
Understand the concept of a phylogenetic tree: A phylogenetic tree is a diagram that represents the evolutionary relationships among different species, showing how they are related through common ancestors based on genetic or morphological characteristics.
Eliminate incorrect options: A phylogenetic tree is not a graphical representation of the food web in an ecosystem, as food webs depict feeding relationships rather than evolutionary connections.
Eliminate another incorrect option: A phylogenetic tree does not show population size over time, as that would be a population growth chart or demographic study.
Eliminate the final incorrect option: A phylogenetic tree is not a table listing the classification hierarchy of organisms, which is more akin to a taxonomic chart.
Select the correct definition: The best definition of a phylogenetic tree is 'A diagram that represents the evolutionary relationships among different species based on their genetic or morphological characteristics.'
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