Your answer is c, cell membrane. I hope I could help xD
Have a wonderful rest of the day.
        
             
        
        
        
Answer:
I don't know how to do this. But I'll explain catalysts using these words as keywords.
Explanation:
Catalysts don't increase activation energy. they lower the activation energy. they are recyclable as they are not consumed in reactions. they accelerate the rate of the chemical reaction.
 
        
             
        
        
        
Answer: Here are all the ways mindfulness can help you manage stress: Nine Ways Mindfulness Helps with Stress. You become more aware of your thoughts. You can then step back from them and not take them so literally. That way, your stress response is not initiated in the first place. You don’t immediately react to a situation. Instead, you have a moment to pause and then use your “wise mind” to come up with the best solution.
Explanation:
 
        
                    
             
        
        
        
Answer:
d. None of these  
Explanation:
Probably the identical sequence found in both species<em> </em>is an<em> ultraconserved sequence. </em>
An <u>ultraconserved element</u> is a particular DNI sequence that remains exactly the same through evolution, with almost no modification, and that is shared by at least two completely different species. 
These ultraconserved DNI portions seem to be highly essential for life. However, their function could not be determined yet. Most of them do not codify for proteins, but they could play a significant role in gene regulation. 
It is suggested that these sequences are so significant for life that only a small change would compromise the organism´s aptitude.