Living systems follow the laws of conservation of mass and energy by <span>stating that </span>matter<span> is not created nor destroyed as a result of chemical reaction.
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<span>Parents can pass on chromosomes to their children that are different than their own when the new gene combinations are created by crossing over. The exchange of genetic material between homologous chromosomes is known as crossing over which occurs in meiosis. When homologous chromosomes pair up and exchange different segments of the genetic material. As the result, a new combination of genes will be formed. If there was not crossing over, all genes on a chromosome would be inherited together.</span>
        
                    
             
        
        
        
I know this answer but it is really commutated 
        
             
        
        
        
Robert Hooke is the first person to observe cells as microscopic structures. 
He was of British descent and, fun fact, he discovered cells by looking at a sliver of cork under a microscope lens (although the 'fun fact' is heavily simplified).