Because it is too hard to find a specimen on high power. Easier to find them and focus them on low power and then increase the magnification and fine-tune the focus to get a better, closer look.
This is done to control the focus, especially when attempting to view microorganisms at 1000x. If you focus too fast, there's a chance of breaking the slide and contamination of the microscope stage. It is always best to go slow, take your time, and gently use the fine focus to locate your specimen at high power.
If you set the power to high before centering the sample, the sample will have appeared to move and you will see only one side of it or the other. If the sample is centered, then when put on high power, you will still be looking at the center
The proper way to focus a microscope is to start with the lowest power objective lens first and while looking from the side, crank the lens down as close to the specimen as possible without touching it. Now, look through the eyepiece lens and focus upward only until the image is sharp.Once the image is sharp with the low power lens, you should be able to simply click in the next power lens and do minor adjustments with the focus knob.
The high power objective's field of view is much smaller than the low power field of view. It is much easier to locate a specimen on low power, focus, and then change to high power. You may then need to use the fine adjustment knob to bring the specimen into sharper focus, but never the coarse adjustment knob on high power.
black and blue black and blue.
Because high power takes up a much smaller area, and you may not be able to find the specimen if it's off to one side. C:
its what is in the poo
If no heat fixing was done to a slide with a specimen on it, it would be rinsed off with the gram staining procedure. Heat fixing the specimen does kill specimen but it also locks it in place.
A prepared slide is sealed by acrylic or any other medium. After the solvent evaporates, the specimen is locked under the slip. On the other hand, a wet mount slide has the specimen prepared just before it is put under microscope.
No, a fossil is a naturally preserved part of something that died. Before it died this thing was alive, but it had to die first for the slow process of fossilization to preserve some of its parts by turning them to stone.
I don’t know
Because it is too hard to find a specimen on high power. Easier to find them and focus them on low power and then increase the magnification and fine-tune the focus to get a better, closer look.
Because when looking at it from far, then you can see more of the specimen, However, when you're looking at it closer up in a high power mode, then you will see less of the object, but much closer.
as you zoom in the view gets bigger and if its not in the middle you wont be able to see it properly .
There are a few reasons for this. First, the color can give you an indication of the health of the specimen. If the specimen is very pale, it may be sick or dying. Second, the color can give you an indication of the age of the specimen. If the specimen is very young, it will be a different color than if it is older. Finally, the color can give you an indication of the sex of the specimen. If the specimen is male, it will be a different color than if it is female.
Because high power takes up a much smaller area, and you may not be able to find the specimen if it's off to one side. C:
It allows you to center the specimen, and if it is set up correctly, then when you switch objectives it should still be there and only need fine focusing. It also reduces the chance of crushing the specimen and/or breaking the slide or the lens as the LPO is further away from the slide than the HPO.
Because it will change shape as it dries, so mounting it while it is wet would cause excessive stresses.
WHY IS IT IMPORTANT THAT THE IMAGE IS CENTERED IN THE FIELD OF VIEW BEFORE SWITCHING TO A HIGHER POWER
Typically midstream urine is taken as a urinary specimen, when you have urinary tract infection. It is good precaution to scrub the genital area with some mild soap like glycerin soap, before you take the urine specimen.
prepared by adding water to the specimen which increases its translucency and makes it easier to stain. It also has a tendency to cause the specimen to flatten which makes the specimen easier to view.
You should air-dry a specimen before heating it in the labratory in order to get rid of any impurities. Also, it helps you record the best and most accurate figure while heating.