The cell membrane for it controls what materials should enter in and out of the cell
        
             
        
        
        
Answer:
The correct answer is methane . Nature constitutes most of the substances made up of organic compounds. These compounds have carbon atoms attached with hydrogen atoms with a chemical bond (very few compounds may not have this bond).
 
        
                    
             
        
        
        
Answer:
Homeostasis is an outcome of gene regulation.
Explanation:
This is because gene regulation serves to ensure that protein activity is kept within a narrow range.
 
        
                    
             
        
        
        
The answer is A. Apicomplexa. 
        
             
        
        
        
Answer:
Documentation,link section ,definition section ,main function ,etc