Hello there ^ _ ^ 
The correct answer is A 
Genes and environment are both major influences. 
Please trust my answer.
        
             
        
        
        
It's letter c i believe, because they need the DNA's instruction on how to copy the exact tissue copy.
        
             
        
        
        
Thats me also pay attention in school
 
        
        
        
Eukarya. Eukaryotes are the only organisms that have true nuclei and membrane-bound organelles, though some bacteria have a pseudo-nuclei.
The reason why only eukaryotes have true nuclei and membrane-bound organelles is because only eukaryotes have figured out how to create so much energy through the mitochondria, which is required for high compartmentalization. 
        
             
        
        
        
The correct choice from given option is "D", "Lactobacillus"
It seems proper to explain a bit about the types of cells here. Two type of cells are: 
1) Prokaryotic: these cells have no nucleus and they are small and simple.
2) Eukaryotic: These cells have a nucleus and are large and complex as opposed to prokaryotic.
"Lactobacillus" belong to first stated category here.