In the question 'Add a note on different forms of bacteria' should I write bacteria based on evolution or shapes of bacteria
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The discussion of bacterial morphology has been dominated by questions about how a cell manages to create a rod shape, which, of course, is but one example of the more general question of how a cell constructs any shape. The expectation is that by answering this (deceptively) simple question we may acquire knowledge that will point us to a universal mechanism of shape control. This emphasis is understandable because we are both more familiar with and more comfortable with answering how-type questions. And, indeed, this approach has produced exciting new information, highlighted by other articles in this issue.
Bacteria (/bækˈtɪəriə/ (About this soundlisten); common noun bacteria, singular bacterium) are a type of biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste,[4] and the deep biosphere of the earth's crust. Bacteria also live in symbiotic and parasitic relationships with plants and animals. Most bacteria have not been characterised, and only about 27 percent of the bacterial phyla have species that can be grown in the laboratory.[5] The study of bacteria is known as bacteriology, a branch of microbiology.