Biology, 19.09.2019 18:50, aliviafrancois2000

Why must proper lighting be obtained when operating a microscope?

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When a person is using a microscope is it very important to use the proper lighting. Each specimen is different and some need to be looked at with different shades of light. When using a conventional light microscope, light is used is aimed upwards at the lens. This light is underneath the condenser. The person using the light can see things that other microscopes can't because of the pigmentation that is natural. They will also be able to see things not normally seen because of the thickness of the stain that is usually colourless. The light helps to absorb the thickness. Many times, living bacteria will not show up at all. It will only show up by using maximum contract of light. The knob that is on microscopes will help to adjust the lighting to see various stains on the slides. Using the light microscopes will show up very small objects that can't be seen with other types of microscopes. Lighted microscopes are a very important tool in research labs, schools, etc.

answered: Guest

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

answered: Guest

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives amount of rainfall higher than savanna. therefore, savanna exhibit dry and hot climatic conditions.

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