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

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

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

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

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