Dr. Blackwell caused rats to stop breathing when he lesioned their MEDULLA.
When doctor Blackwell induced a lesion in the rats' medulla, he discovered that the rats stopped breathing. He explained this observation by saying that the medulla has functional role to play in the breathing process of rats.
        
             
        
        
        
Cases in which hair, bones, and teeth are the only evidence retrieved/available from a crime scene are particularly well suited to mDNA(mitochondrial DNA) is comparison and analysis is true.
Explanation:
The mtDNA is used to analyse a variety of samples such as bones, teeth and hair. It is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form of cells.
The trace DNA is a forensic method used for analysing DNA left at the scene of a crime. All the evidence from the scene are sent to the forensic laboratory for analysis. It processes all pieces of evidence from the scene. Once the reults are ready then there will be lead in the detective case.
 
        
             
        
        
        
Answer:
Piercing and sucking mouthpart
Explanation:
Hope it helps. 
 
        
             
        
        
        
Answer:
I think the answer is A but i'm not sure if this is correct hope the explanation part helps
Explanation:
Photosynthesis is the process by which organisms that contain the pigment chlorophyll convert light energy into chemical energy which can be stored in the molecular bonds of organic molecules (e.g., sugars).