Coronaviruses (lat. Coronaviridae) is a family of viruses that includes, as of January 2020, 40 species of RNA-containing viruses United in two subfamilies[2] that affect humans and animals. The name is associated with the structure of the virus, whose spiny appendages resemble the solar corona[3]. The purpose of the "crown" in coronaviruses is related to their specific mechanism of penetration through the cell membrane by imitating "fake molecules" of molecules that the transmembrane receptors of cells respond to. After the receptor captures the fake molecule from the "crown", it is pushed by the virus into the cell and the RNA of the virus enters the cell[4][5].
1. David goes to the concerts every weekends.
David is going to the concert this weekend.
2. She often plays chess at home.
She is playing chess at home now.
3. I cook fish every day.
I'm cooking fish now.
4. -
The Pattisons are watching TV now.
5. Victoria studies English at university.
Victoria is studying English at university now.
6. We often read books about animals.
We are reading a book about animals.
7. Nick like to listen rock music.
Nick is listening rock music now.
8. Carry usually gets up at 8 o'clock.
Carry is getting up now.
Coronaviruses (lat. Coronaviridae) is a family of viruses that includes, as of January 2020, 40 species of RNA-containing viruses United in two subfamilies[2] that affect humans and animals. The name is associated with the structure of the virus, whose spiny appendages resemble the solar corona[3]. The purpose of the "crown" in coronaviruses is related to their specific mechanism of penetration through the cell membrane by imitating "fake molecules" of molecules that the transmembrane receptors of cells respond to. After the receptor captures the fake molecule from the "crown", it is pushed by the virus into the cell and the RNA of the virus enters the cell[4][5].