the answer is vascular seed forming plants and can I get brainliest
 
        
                    
             
        
        
        
Answer: doctor may be able to determine the cause by listening to your medical history and doing a physical exam. If necessary, they also can order a blood or urine test to help confirm a diagnosis, or a "culture test" of tissue to identify bacteria or viruses.
Explanation:
 
        
             
        
        
        
I would say b but then again im not really sure so...
        
             
        
        
        
Answer:
Hello. 
• gels can melt during electrophoresis, the buffer can become exhausted, and different forms of genetic material may run in unpredictable forms.
• And the strengths could be that it separates based on size, it is relatively easy to do.