Micro Organisms
Which of the following is a characteristic unique to the ciliates?

Use of cilia as a sensory function
Possess a light-detecting eye spot
Presence of both a macronucleus and several micronuclei
Both (a) and (b)

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Micro Organisms
Which of the following best represents the hierarchy of levels of biological classification?

Phylum, kingdom, class, order, genus, species, family
Kingdom, phylum, family, class, order, genus, species
Kingdom, phylum, class, order, family, genus, species
Class, order, kingdom, phylum, family, genus, species

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Micro Organisms
Genetic and biochemical similarities between contemporary cyanobacteria and eukaryotic chloroplasts are accepted to mean that

eukaryotes evolved from bacteria
oxygenic photosynthesis first evolved in eukaryotes
eukaryotes evolved from archaea
cyanobacteria arose from chloroplasts which escaped from plant cells

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