The larynx is an nicknamed the "voice box" because it holds the vocal cords inside. It helps change the pitch and volume of our voices as we speak. It is the only part of the body capable of doing this job, so we don't ever want it removed. Our voices would be much more monotone sounding. The larynx connects the pharynx to the trachea in the neck. It is also capable of allowing air through for us to breathe, but does not let anything (food or drink) block the airway. This is obviously a daily function since we eat and drink numerous times daily and usually have no problems breathing while eating and drinking. This is thanks to the larynx. 
Hope this helps! :)
        
             
        
        
        
means, a lot of life in a particular area
Explanation:
High biodiversity means that a region supports a wide variety of species, while low biodiversity implies that an area supports only a few.
 
        
             
        
        
        
Explanation:
The way the Cell cycle works helps us keep us alive as long as usually do. An example is when you bite your cheek, you may kill some cells by it but your alive cells will replace them by creating more. Now without the cell cycle here's what would happen, You bite your cheek and your cells die forever causing your mouth to be dryer, weaker and to lack enzymes ( enzymes help brake down your food and ready it to go threw your digestive system ) So imagine every time you get hurt and your cells just keep dying without being reborn that's like as if everyone stopped creating children eventually the human race would end, If the cell cycle does not do its job eventually you will get weak and die. that's why the Cell Cycle is important to any living things well being especially if its Multicellular.
                           Hope this helps! <3
 
        
             
        
        
        
Many reasons including that burning of them (including use in cars) creates greenhouse gases which lead to climate change. There are alternatives becoming available that lower the greenhouse gas emissions...healthier planet!
        
             
        
        
        
A process used by plants to convert light energy into food energy is photosynthesis.