The correct answer is C. Understand the behavior of entire biological systems by studying interactions among its component parts.
Explanation:
Systems biology refer to a field of study that aims at understanding complex biological systems or network of biological factors and organizations using a holistic approach, which means systems are analyzed according to its components from different perspectives. Due to this, systems biology is widely used to understand the way biological system work and the ways these are affected if one of their component parts changes. According to this, the statement that shows the purpose of systems biology is "Understand the behavior of entire biological systems by studying interactions among its component parts".
The correct answer here is A. Chemical bonds are formed which are either
covalent or ionic. In an ionic bond electrons transfer between atoms,
whereas in covalent bonding atoms share their outermost electrons and
gain stability as a molecule of the compound they are part of.
The answer is nerve cells