The answer is:
<span>Step 1 Genetic material duplicates.
</span>Step 2 Cell grows in size and other <span>organelles duplicate.
</span><span>Step 3 Cell wall or membrane forms.
</span>Step 4 Cells separate.
Binary fission is a type of cell division characteristic for prokaryotic cells. In this process, after the cell reaches its maximum size, the genetic material starts to duplicate. These two copies of genetic material are now connected to plasma membrane. The cell begins to grow in size and thus separate those two copies of genetic material. Other organelles are duplicated, too. Next, a new cell wall or cell membrane starts to grow in the middle of the cell leading to the separation of the cell. 
        
                    
             
        
        
        
autosomal recessive disorder=d
homozygous dominant=D
dd
dD
B
 
        
             
        
        
        
Answer:
The answer is A.
Explanation:
Moth with dark wings under the tree with dark bark have a higher chance of surviving as its wings protect them from predator due to similar colour features.
 
        
                    
             
        
        
        
Answer:
c) It introduces a premature stop codon into the mRNA
Explanation:
Nonsense mutation is a type of point mutation (single nucleotide base is changed) which leads to premature stop codon. Stop codons are also called nonsense codons and that is way this type of mutation is called nonsense mutation. As a consequence, synthesized protein is incomplete and shorter than it should be (truncated protein), usually nonfunctional.
 
        
             
        
        
        
Answer:
Body systems are used throughout your body to help you move and to live like the heart for example.