Giardia is a protozoan parasite that lacks mitochondria. Based on the figure below, what could be the explanation for this. Explain your reasoning.

Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
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Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
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Chapter20: Viruses, Bacteria, And Archaea
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Giardia is a protozoan parasite that lacks mitochondria. Based on the figure below, what could be the explanation for this. Explain your reasoning.

Plants
Origin of
chloroplasts
Early diversification of
algal/plant lineages and
gene transfer to the host
nuclear genome
Early diversification of
eukaryotic lineages and
gene transfer to the host
nuclear genome
Ancient
cyanobacterium
Ancient
Eukaryotes
protozoan
Origin of mitochondria
The host that
acquired
mitochondria
Ancient
proteobacterium
Nucleus
O Chloroplast
Mitochondrion
Cyanobacteria
Proteobacteria
Archaebacteria
Transcribed Image Text:Plants Origin of chloroplasts Early diversification of algal/plant lineages and gene transfer to the host nuclear genome Early diversification of eukaryotic lineages and gene transfer to the host nuclear genome Ancient cyanobacterium Ancient Eukaryotes protozoan Origin of mitochondria The host that acquired mitochondria Ancient proteobacterium Nucleus O Chloroplast Mitochondrion Cyanobacteria Proteobacteria Archaebacteria
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