Answer: DNA 
Explanation:
A chromosome is a thread-like material with a long structure found in the cell nucleus. It mainly contains DNA and proteins. Due to the presence of DNA in chromosomes, it carries several genes. 
The total number of chromosomes in human cell is 46: 44 are non-sex chromosomes while 2 are sex chromosomes 
 
        
                    
             
        
        
        
Answer:
some could have gotten more shade or sun depending on where they were placed ,or some could have had trouble growing,plus some may have gotten more rain , it all really depends on where the plants are placed
 
        
             
        
        
        
A baby's immune system is not fully developed until he/she is about six months-old. In the meantime, pregnant mothers pass immunoglobulin antibodies from their bloodstream, through the placenta, and to the fetus. These antibodies are an essential part of the fetus's immune system. They identify and bind to harmful substances, such as bacteria, viruses, and fungi that enter the body. This triggers other immune cells to destroy the foreign substance.
        
                    
             
        
        
        
The SI system or metric system is the most commonly used system of measurement around and hence makes it more applicable around the world than the english SOM