Questions and Answers
What characteristics can scientists use to generate a phylogenetic tree?
Scientists can use external morphology, internal anatomy, behaviors, biochemical pathways, DNA and protein sequences, and even characteristics of fossils to generate a phylogenetic tree.
Are phylogenetic trees definitive answers?
No, phylogenetic trees are hypotheses, not definitive answers.
How do biologists update and revise phylogenetic trees?
Biologists update and revise phylogenetic trees over time as new data becomes available and can be added to the analysis.
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