Answer:
According to scientists , water occupies up to 60 % of the human body .
The importance of water in the human body are ;
- Transport
- Formation of bodily fluids i.e. saliva
- Digestion
- Regulates body temperatures
- Circulation of nutrients
Explanation:
The reason why it is important to maintain good fluid balance within and without he cells is because , It can dissolve various elements to make then easily absorbed into other system .There are many fluids which rely on water for volume e.g. blood which is the main component of the circulatory systems , water also regulates the temperature and heart pressure ,
Through electrolysis , fluid balance in the cells can be achieved and it also helps to generate nerve impulses .
Explanation:
Catalase test demonstrate the presence of an enzyme called catalase, that catalyses the release of oxygen from hydrogen peroxide. It is used to tell the difference between the non-catalase producing bacteria from those bacteria that produces an enzyme catalase. Catalase is produced by the bacteria that respire using oxygen. If an organism produces catalase, bubbles of oxygen are produced when hydrogen peroxide is added to it.
The answer to this question would be D.
Capillary Action.
