Answer:
C. Cytology is the study of cells, while histology is the study of tissues
Explanation:
Just learned about cytology, and searched up histology, and it is about tissues. Every other answer is wrong.
Hope this helped :)
 
        
                    
             
        
        
        
Answer:
Genetic variation is a term used to describe the variation in the DNA sequence in each of our genomes. ... Individuals of a species have similar characteristics but they are rarely identical, the difference between them is called variation
Explanation:
 
        
                    
             
        
        
        
It is in standard notation
in scientific notation it would be  is 5.4 x 10^6
        
                    
             
        
        
        
First we can look at the taxonomic order:
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
The largest level would be the one closest to the top of the list because it is the least specific and therefore the most inclusive. Out of the choices given, phylum is closest to the top, so that is the answer.
        
             
        
        
        
Explanation:
The use of CRISPR/Cas9 avoids the need for protein engineering to develop a site-specific nuclease against a specific DNA target sequence, requiring only the synthesis of a new piece of RNA. This dramatically simplifies and greatly reduces the time needed for gene editing design and implementation.