Answer:
d
Explanation:
The cytoplasm is almost like the space inbetween the organells.
 
        
                    
             
        
        
        
Seasonal variations of climate impact the state of an ecosystem. In areas that experience a cold season, some elements of the ecosystem change their residence or even hibernate to survive. Succession can be considered a higher state of development of the ecosystem.
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Ionic compound means a metal bonds with a nonmetal. 
<span>KBr Potassium Bromide, metal and nonmetal. (Ionic) </span>
<span>SO2 Sulphur Di-oxide, nonmetals (covalent) </span>
<span>FeCl3, Metal and nonmetal (Ionic) </span>
        
             
        
        
        
Active site
A reactant
binds to an enzyme in a region known as the active site during a reaction. The active site is the
most important part of the enzyme because it is where the chemical reaction
happens. It usually contains three to four amino acids and a binding site that
binds the substrate and prepares it for catalysis.