The correct answer should be loss.
When your skin is cut open, obviously a little blood will run out as a result of that. This case is no different - the person who fell and has an abrasion on the knee will experience a slight loss of blood through that tiny wound which is the result of them falling on the ground.
The correct answer is signal transduction.
Signal transduction also called cell signaling refers to the conduction of molecular signals from the external of the cell to its internal. The signals perceived by the cells must be conducted efficiently into the cell to make sure an effective response. This step is stimulated by cell-surface receptors.
There are three phases in the procedure of communication or cell signaling, that is, reception, transduction, and response.
Your body releases sweat to help regulate its body temperature to prevent you from overheating
Sweating also helps your body to eliminate toxins, which supports proper immune function and helps prevent diseases related to toxic overload
Sweating may help kill viruses and bacteria that cannot survive in temperatures above 98.6 degrees Fahrenheit, as well as on the surface of your skin