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Micro Organisms

Micro Organisms
Which of the following structures is the smallest?

Bacterium
Viriod
Hydrogen atom
Mitochondrion

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Micro Organisms
Carl Woese and his colleague are best known for establishing

the three domain system
the prokaryote-eukaryote system
the five kingdom system
the plant-animal system

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Micro Organisms
All of the following are features of prokaryotes except

photosynthesis
locomotion
sexual reproduction
nitrogen fixation

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Micro Organisms
Which cell type is considered to have the oldest ancestor?

Bacteria
Eukarya
Archaea
they all share the same ancestor

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

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

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Micro Organisms
One of the reasons for the evolutionary success of the kingdom Monera is that its members are nutritionally diverse. Which of the following(s) is/are the way(s) of obtaining energy?

All of these
Photoautotrophy
Photoheterotrophy
Chemoheterotrophy

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