14. Why are euglenas involved
in polemics related to their
taxonomic classification?

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Euglenas are involved taxonomic
polemics because tend to be
sometimes as protozoans
sometimes as algae. they have
chloroplasts they are photosynthetic
beings, euglenas do
have a cell and they can by
“eating”substances from
environment when light not available
for . Curiously euglenas
also a photosensitive structure
stigma that orients movement
of the towards light. Nowadays
are classified as , but it is
that they are
ancestors of algae protozoans.