B that our early ancestors were tailed primates
        
             
        
        
        
SSRI stands for S<span>elective Serotonin Reuptake Inhibitor and it is a type of antidepressant medication.  These medications are used to treat depression, and have fewer side effects than other medications. 
</span><span>These group of drugs works primarily by interfering with the reabsorption of serotonin in the brain. Serotonin is linked to happiness and good feeling, so i</span><span>ncreased serotonin can help relieve depression. </span>
        
             
        
        
        
The magnetic force decreases.
        
                    
             
        
        
        
7 possibilities total 3 steps.
        
             
        
        
        
The answer is; C
Gene therapy is still not considered safe and has not been approved for humans, especially due to errors in inserting of DNA at the target site and also random relapse of the DNA from its inserted site. Gene therapy, however, can be sanctioned when its benefits outweigh its risks such as in terminally ill patients - with the approval of the patient and local relevant policies/authorities. Gene therapy, today, is being tested with innovative tools called CRISPR/Cas9.