There are thousands of different types of viruses that exist in the world. These viruses can infect various organisms including animals, plants, and bacteria. It is estimated that only a small fraction of all viruses have been identified and studied so far.
more than 20
The exact number of how many viruses exist in the world is not known because there have been some that have yet to be discovered. Also, many known viruses are also able to mutate into brand new viruses. This makes it next to impossible to get an exact count.
250,000
92 atoms have been identified, i think(:
250,000 Different Species
There are thousands of enzymes that have been identified in various organisms. It is estimated that there are over 5,000 different enzymes in the human body alone. However, the exact number of enzymes identified can vary depending on how broadly one defines what constitutes an enzyme.
4000
There are over 80 different sleep disorders that have been identified. These include insomnia, sleep apnea, narcolepsy, and restless legs syndrome, among others. Each disorder has its own unique set of symptoms and treatment options.
At least five different forms of Niemann-Pick disease (NPD) have been identified.
2
i do not know