Answer:
pH: If it's to much on either the alkaine or the acid side the enzymes will vary
Explanation:
 
        
                    
             
        
        
        
the importance of this procedure is to get a set of data to compare your other test results to, like when they are active
 
        
             
        
        
        
Answer:
In sexual reproduction, traits will be taken from both parents, so the child will be a mix of traits from the father and the mother
In asexual reproduction, there is only one parent, so the child will be a genetical replica of the parent
 
        
             
        
        
        
Answer; 
C. it is the part f the atom with the greatest mass
Explanation;
The nucleus of an atom is a small dense region at the center of an atom that contains protons and neutrons. 
Almost all the mass of an atom is located in the nucleus, with a very small contribution from the electron shells.
The protons are positively charged which gives the nucleus a positive charge while the neutrons have no charge.
 
        
                    
             
        
        
        
The carbon dioxide escapes, and bubbles forth as a gas. Baking soda and vinegar react<span> with each other because of an acid-base </span>reaction<span>. </span>Baking soda<span> is a bicarbonate (NaHCO3) and </span>vinegar<span> is an acetic acid (HCH3COO)</span>