Answer:
Phosphorus
Explanation:
idk amino acids contain carbon hydrogen oxygen and nitrogen as well as sulfur sometimes
nucleic acids contain phosphorus as well as carbon hydrogen and nitrogen
 
        
             
        
        
        
Cells with the full set of chromosomes are 
diploid somatic cells.
 
        
             
        
        
        
Answer:
The correct answer is - 1/2
Explanation:
the ability to roll the tongue is dominant over those who can not roll the tongue. The man is Rr (man), heterozygous. The woman is recessive and can not roll
Rr (man) x rr (woman)---Parents
            r
R	Rr (roll)
r	rr (cann't roll)
The probability of their children to able to roll = 1/2 = 50%
 
        
             
        
        
        
It can be between restaurants to see who is better at serving and service or a competition between 2 or more people at an activity.
        
                    
             
        
        
        
An endangered species means it is a kind of organism that is near extinction
or completely wiped from the face of earth
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