You should have payed attention in class what hehe
Organisms that are too small to be resolved by the compound microscope, such as viruses and subcellular structures like ribosomes, cannot be viewed with this type of microscope. Additionally, organisms that are transparent and lack contrast, like certain marine or microscopic animals, may also be difficult to visualize using a compound microscope without specialized techniques like staining.
They are microscopic organisms. Some are bacteria,some fungi,protozoans etc
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There are plenty of animals smaller than fish. There are even organisms that are so small you cannot see them without a microscope.
The main disadvantage of an electron microscope compared to a compound microscope is that it requires a more complex and expensive setup. Electron microscopes also cannot be used to observe living specimens because the process typically involves vacuum conditions and sample preparation techniques that would kill living cells.
The microscope is majorly used in Biology to view organisms that cannot be viewed with bare eyes. The study is therefore important in the study of organisms that causes diseases.
Viruses. They are smaller than the average wavelength of light and as such are not viewable unless an electron microscope is used.
A compound light microscope is better for observing living organisms because it uses light to illuminate the sample, allowing for observation of dynamic processes. Electron microscopes, on the other hand, use electron beams and are better for observing smaller structures in high detail due to their higher resolution but cannot be used for living samples.
You cannot smell or taste micro organisms. You can only see them under a microscope Micro-organisms like fungi can be seen when they form clusters.
Most protists are microscopic and cannot be seen without a microscope due to their small size. However, some protists, such as giant kelp, are macroscopic and can be seen without the aid of a microscope.
A compound microscope
Because it is made up of more than one lens. A simple microscope is make up of one lens (a hand held magnifying glass can also be considered as a simple microscope). In a compound microscope, one cannot see the magnified image until both the lenses are used.