The given blank can be filled with synesthesia.
A perceptual occurrence in which activation of one cognitive or sensory pathway resulting in involuntary or automatic experiences in a second cognitive or sensory pathway is known as synesthesia.
The one usual form of synesthesia called grapheme-color synesthesia or color-graphemic synesthesia, in which numbers or letters are observed as intrinsically colored.
5: the parasite and the host need each other
D. The microscope. It is now the workhouse of biology
