There are different types of observers. Casual observers differ from scientific observer. Seeing and observing are two different things. Not that everybody seeing is actually observing the thing. 
A casual observer just sits back and watch for something to happen while a scientific observer comes up with some hypothesis to work on it.  
        
                    
             
        
        
        
They are better in organization and systemic communication.
They have a higher chance of survival and is capable of surviving many circumstances. 
There are differences between Eukaryotic and Prokaryotic cells. This difference is considered to be the most important distinction between groups of organisms. A Prokaryotic cell does not contain a nucleus. It only contains one chromosome and is a single-celled organism. It was the only form of life on earth for millions of years. Examples of a Prokaryotic cell are the different types of bacteria present today. 
A Eukaryotic cell contains a nucleus; more than one chromosome and is typically a multi-celled organism.  <span>Both plant and animal cells are eukaryotic cells.</span>
        
             
        
        
        
That is because water has a high heat capacity, meaning it can absorb large amounts of heat without the temperature being affected.
        
                    
             
        
        
        
Answer:
There are many types of matter because one thing or substance can change its structure depending on its environment such as how much pressure it's under and what kind of temperature surrounds it.