Answer:
 Embryology: the study of similarities in embryos of organisms to find common connections 
Developmental biology:  the study of life cycles of organisms to find common
Molecular biology: the analysis and comparison of DNA to better understand relationships between species 
comparative anatomy: the study of the anatomy of an organism to explain evolutionary similarity
Explanation:
Embryology can be described as the branch of biology in  which studies about the sex cells, the process of fertilization and the development of the fetus or embryo are made. The similarities between the embryos show evolutionary history among different organisms.
Developmental biology can be described as the branch of biology in which studies are made about the processes of growth and developmental procedures about organisms. Organisms belonging to different groups can also show developmental similarities if they have a common ancestor.
Molecular biology is the branch of biology which is related to the study of life on molecular level. At this level, similarities between the genome of organisms can be checked for evolutionary histories. 
Comparative anatomy: It is the branch of biology in which organisms are studies based on the similarities and differences in their structures.
 
        
             
        
        
        
Answer:
B) if two species are closely related.
Explanation:
DNA analysis is used to determine the relationship between two species in order to check their relations with each other because DNA molecules has all the information about the organisms. If there is more similarities between two organisms so they are more closely related to each other while on the other hand, if there is no similarities between two species so we can say that there is no relationship exists between two organisms or species. All this discussion  describes the usefulness of DNA analysis.
 
        
             
        
        
        
Metabolic pathways stimulate cell division.
        
                    
             
        
        
        
Answer:
Critical thinking requires scientists to ask questions about information they come across and assess its validity. This facet of critical thinking helps them avoid bias that originates from personal opinion and helps them distinguish information and fact from common belief.
 
        
             
        
        
        
Answer:
Asexual Reproduction: Mitosis, genetic sameness
Sexual Reproduction: Meiosis, produces gametes, genetic variation,
Both: Nuclear Division, DNA replicated
Not too sure about the DNA replication but i hope this helps !