Imagine that you’ve prepared a hanging drop slide but were called out of the room for an hour before being able to look at it. When you return, examination of the slide shows motility. Would you be satisfied with this result? What if the slide showed no motility when you returned?

Answer and Explanation:

If I have prepared a hanging drop slide to examine bacteria's motility, and I called out of the room for an hour, before the examination. After one hour, when I came back to the laboratory, and I examine the slides. If the examination of the slide show motility. I would be satisfied with this result because it means that bacteria can move in the surrounding medium. On the other hand, if the slide's examination shows no motility, it means that bacteria cannot move in the surrounding medium. Bacteria are divided into two groups based on motility. Motile bacteria show motility in the surrounding medium, in which they were suspended, while the non-motile bacteria will show no movement. The examination of the motility of bacteria is done under a microscope by using oil immersion. Hanging drop method is the best method for bacteria identification.

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.

b. to discover aspects of the natural world.

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