It depends whether we are talking of animals or humans re community stability and diversity. Since we are speaking of community most likely it is to do with humans. Humans maintain community stability by sharing their knowledge and experience and volunteering to develop community programs like gardens in a neighborhood and develop diversity by including people of all backgrounds and races and encouraging their participation.
        
             
        
        
        
<h2>
The correct answer is explained below:</h2>
Explanation:
- According to the given question, 
- For eye color, let the black color be represented by B allele and orange color be represented by b allele. Black is dominant over orange.
- For skin color, let the green skin be represented by G allele and white skin be represented by g allele. Green is dominant over white.
- The phenotype of Sam is black eyes and green skin so his genotype can be BBGG or BbGg. It is also said that one of his parents has phenotype orange eyes and white skin. That parent's genotype must be bbgg.
- Hence, the genotype of Sam must be BbGg.
- Carole has the phenotype of orange eyes and white skin. Her genotype would bbgg.
- The gametes produced by Sam are: BG, Bg, bG, bg.
- The gametes produced by Carole are: bg.
- Mating them we get,
            BG                    Bg                   bG                       bg 
bg      BbGg               Bbgg               bbGg                   bbgg
   (Black/ Green) (Black/ White) (Orange/Green)  (Orange/ White)
- The genotypes and phenotypes (Eye color/ Skin color) obtained are represented above.
- The phenotypes (Eye color/ Skin color) obtained are in the following ratio:
(Black/ Green) : (Black/ White) : (Orange/Green) : (Orange/ White) = 1 : 1 : 1 : 1
 
        
        
        
You didn't provide the reaction, but enzymes usually just help the reaction take place, often faster then it would in regular conditions. They are completely used up during the reaction and don't affect it in any other way, meaning they don't change the properties of the compounds. 
        
             
        
        
        
Vacuoles store materials in a cell.
        
             
        
        
        
The cerebrum/cortex - they're the same thing named differently