DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code. Human DNA has around 3 billion bases, and more than 99 percent of those bases are the same in all people. DNA sequencing theory is the broad body of work that attempts to lay analytical foundations for determining the order of specific nucleotides in a sequence of DNA
 
        
             
        
        
        
Once entering the atmosphere the heated up water vapor (that's the process of evaporation) cools back down (the atmosphere is cooler than the Earth you see). it makes clouds Their it will condense until it's heavy enough to fall to Earth as precipitation!  
        
                    
             
        
        
        
Answer:
MRCORRECT has answered the question 
Explanation:
Starting from head to toe: Ahuman brain is like acomputer's central processing unit (CPU). In order for both the human body and computerto perform tasks, they need a brain or CPU. The brain and CPU communicate with otherparts of the computer
 
        
                    
             
        
        
        
Answer:
ovum fusing with sperm will give zygote (fertilization)
The zygote later on develops to an embryo in the womb after implantation.
 
        
             
        
        
        
Calcium which is a major mineral in the body