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Micro Organisms

Micro Organisms
Which of the following structures is the smallest?

Hydrogen atom
Bacterium
Mitochondrion
Viriod

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Micro Organisms
A newly discovered microscopic structure is hypothesized to be a living organism. Which of the following lines of evidence would support the contention that this organism may be alive?

All of these
It utilizes energy
It contains DNA
It is made of a single cell

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Micro Organisms
The idea of selective toxicity was first proposed by

Louis Pasteur
Antony van Leeuwenhoek
Alexander Fleming
Paul Ehrlich

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Micro Organisms
The individual best remembered for bringing microbes to the world is

Robert Hooke
Masaki Ogata
Robert Koch
Antony Van Leeuenhoek

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Micro Organisms
The first organism in most natural food chains is

carnivorous
a herbivore
photosynthetic
a decomposer

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Micro Organisms
Who was the inventor of the Petri dish?

R.J. Petri, an assistant of R. Koch
A famous French cook
None of these
Italian glass blower from Petri, Italy

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