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Viruses could not be seen because the resolution and magnification was not good enough until 1938 when Ernst Ruska developed the electron microscope.
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Why are viruses considered?
they are able to multiply, which could be seen as a form of reproduction
What cell structure could not be seen until the electron microscope was invented?
viruses
Can viruses be seen with a microscpe?
they certainly can be seen
How could you find the name of fish you haven't seen before?
how could you find the name of fish you haven't seen before
Bacteria were first seen in 1683 but viruses were not seen until 1938why?
Viruses were too small to be seen in a microscope so they were not identified till the 1930s.
Can Viruses be seen with a light microscope.?
Viruses are too small to be seen directly with a light microscope.Can be seen when it's examined under an electron microscope
Are viruses seen under an electron microscope?
Only the largest of viruses (e.g. Pox viruses) can be seen with a good light microscope (albeit with poor detail). Viruses usually can only be seen by electron microscopy. [2nd year Dental student, Naser]
Why might HIV not cause symptoms right away?
Many bacteria and viruses need time to multiply before any signs and symptoms can be seen.
Did leeuwenhoek observe protoza and viruses?
Viruses are too small for van Leeuwenhoek to have seen with his simple microscope.
Why did Robert Hooke's not include viruses in his book?
Viruses are too small, and can't be seen in an optic microscope.
How can viruses be seen?
Viruses are incredibly small - much smaller than the smallest of bacteria, even though many millions of bacteria could fit on a pinhead. Therefore viruses can only be seen with the help of a very powerful microscope such as a scanning ellectron microscope.
Can you see bacteria with viruses under microscope?
Yes, bacteria can be seen under a light microscope as they are larger than viruses. However, viruses are much smaller and cannot be seen with a light microscope. Specialized electron microscopes are required to visualize viruses.
