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1)they are prokaryotic organism i.e their nucleus are not bounded by membrane

2)some are free-living organisms and some are parasitic

3)free-living bacteria use flagella for movenment

4)they are unicellular organisms

5)some are toxins

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12y ago
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11y ago

Major characteristics of Bacteria:

1.Unicellular and prokaryotic (i.e no membrane enclosed nucleus).

2.Reproduce by asexual method.

3.Contain closed circular double helix DNA.

4.Have a rigid cell wall of peptidoglycon.

5.Commonly found in ground water and oter living organism.

6.Also grown on artificial laboratory media.

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11y ago

they are

prokaryote

having cell wall

hetrotrophic

reproduce asexually

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11y ago

small species

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Q: What are the four main characteristics of bacteria?
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