Question 3 Scientists theorize that all life started with simple prokaryotic organisms. New species continue to evolve from existing
species, creating the variety of life we see today. The following diagram shows the basic process.
animalia
(eukaryotic
fungi
multicellular)
(eukaryotic,
unicellular,
multicellular)
plantae
(eukaryotic
protista
multicellular)
(eukaryotic,
unior
multicellular)
archaebacteria
(prokaryotic,
eubacteria
unicellular)
(prokaryotic
unicellular)
universal
ancestor
Based on this diagram, do you think that organisms of the same order will share a stronger evolutionary relationship than
organisms that share only the same phylum? Explain your reasoning using the results of your investigation.
B
I
U X
X
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А • А