Answer:
SARS- CoV- 2 is a virus that infects human by the oral-respiratory way in which the virus enters the body and these viruses have spikes on their surface made of spike proteins that allow these viruses to bind with the infected cell.
The infected cells have ACE2 receptor that is protein present on the surface of the human cells. Binding allows the structural change in the virus to fuse and enter in the cell where viruses reproduce them selves with the cell with cell system.
Answer:
Cells placed in a hypotonic solution will take in water across their membrane until both the external solution and the cytosol are isotonic. A cell that does not have a rigid cell wall, such as a red blood cell, will swell and lyse (burst) when placed in a hypotonic solution.
Explanation:
Hope this helps! Brainly me if you want! <3
Heterotrophic- has a nucleus and many different organelles
Uranium- lead which is the oldest & one of the most <span>refined of the </span>radiometric dating<span> schemes</span>
Endocrine gland functions with your hormones. Exocrine gland deals with waste and getting rid of it. Which both of them don’t deal with digestion.
