The answer would be:
A. Mysterious self.
Here's is more about Johari's Window:
This is a model that helps understand how you communicate with others. It is divided into 4:
Open self - This refers to things about you that you and others know.
Hidden self - This refers to things about you that you already know but others do not.
Blind self - This refers to things about you that you do not know but others observed.
Unknown self - Things about you that you and others have yet to discover.
Answer:
Bile, informally known as stomach acid, chemically breaks down food early on in the digestive process.
Explanation:
Chewing is the first step in the process of digestion (assuming we are talking about humans and other animals with a similar digestive system) where the food is mechanically/physically broken down.
At the same time, saliva breaks down the food chemically (hence why leaving a simple carb such as bread in your mouth causes it to dissolve over time)
Once you swallow, muscles in the esophagus push the broken-down food to the stomach, where more chemical digestion takes place as a result of bile.
C) neurons - nerve tissue - brain - central nervous system - human being
The answer is <span>Topoisomerase.
Topoisomerase is an enzyme responsible for twisting of DNA helix. After DNA strand is untwisted by helicase enzyme, DNA must be twisted again so the normal function of DNA can be sustained. If left untwisted, the replication fork will continue to grow, the normal function of DNA will stop.</span>