According to the Doppler effect, the sound of a police car siren is louder and high pitched as it approaches the observer. 
        
                    
             
        
        
        
Answer:
Sorry, you didnt add the question, I would have helped!
Explanation:
 
        
             
        
        
        
<span>The answer to this question would be: e. increase the rate of the glycolytic reactions.
</span>Lack of oxygen limits the possible chemical reaction that can be done to produce energy. In the anaerobic environment, fermentation of glucose would be the source of energy for bacteria. The net amount of ATP can't be increased, so you need to increase the rate instead. 
        
             
        
        
        
Answer:
Statement A - cellular membrane
Statement B - eukaryote
Statement C - spore
Statement D - prokaryote
Explanation:
The cell membrane is a protective layer present around the cell and cell organelle that regulates and allows different molecules to enter and exit to regulate homeostasis.
Eukaryotes are the organism that can be unicellular or multicellular with the cells contain a nucleus in it.
Spores are reproductive cells that has a resistant layer that protects the cell from an unfavorable condition and capable to form an adult.
An organism that is unicellular and lacks the nucleus is known as a prokaryote and bacteria is an example of such organisms.