The Corona is made up of plasma surrounding the sun. The Corona I saw Latin for crown, and the Corona is basically a crown of plasma around the Sun and other stars.
The answer is C. Hope this helps
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real subtances? look around you and you'll find out
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Target cell: this cell has a receptor that can bind the ligand. The ligand binds to the receptor and triggers a signaling cascade inside the cell, leading to a response. ... When a signaling molecule binds to its receptor, it alters the shape or activity of the receptor, triggering a change inside of the cell.
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