<span>the cell is the basic unit of a living the</span> cellular level of an organism is where the metabolic processes occur and keep the organism alive that's why it is referred to the basic unit of a living thing
        
             
        
        
        
Answer:
Explanation:
Not sure about the first question but
#2: hybrid
#3: alleles
 
        
             
        
        
        
<em>ATP stands for denosine tri phosphate ..
<u>formation:
</u>it is formed in the respiration ..also 36 molecules of ATP are formed during break down of 1 glucose molecule ..
<u>function:
</u>its function is to provide energy  ,, 
<u>how it provides energy:
</u>when one phosphate molecule separate ATP is converted into ADP and energy is released.. 
and when one phosphate is separated from ADP AMP is formed and energy is released ..</em>