BIOLOGICAL CLASSIFICATION
KINGDOM MONERA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Coccus
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spherical bacteria, up to 1 micrometer in diameter
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rod-shaped bacteria, 1 micrometer in diameter
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spiral-shaped bacteria, slightly longer than spores
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None of the above
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Explanation:
Detailed explanation-1: -An average coccus is about 0.5-1.0 micrometer (µm) in diameter. (A micrometer equals 1/1, 000, 000 of a meter.)
Detailed explanation-2: -Size of Bacterial Cell The average diameter of spherical bacteria is 0.5-2.0 µm. For rod-shaped or filamentous bacteria, length is 1-10 µm and diameter is 0.25-1 .
Detailed explanation-3: -Most common bacteria are about 1 to 2 microns in diameter and 5 to 10 microns long. A micron is one millionth of a meter, or 1/10, 000th of a centimeter.
Detailed explanation-4: -Staphylococci are Gram-positive cocci about 0.5 – 1.0 m in diameter. They grow in clusters, pairs and occasionally in short chains. The clusters arise because staphylococci divide in two planes.
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