A strand of mRNA is the compliment to the coding strand of DNA. It kind of has the opposite information from DNA (if a DNA strand is TCCGATC the compliment mRNA would be AGGCTAG). This way, it is able to retain the information when travelling to the ribosome for translation (aka, turning the DNA information in proteins) 
 
        
             
        
        
        
Ribosomes cell and protien
        
             
        
        
        
when there are dented cans
 
        
                    
             
        
        
        
- keystone species is the correct answer.
<u>keystone species</u> which keeps the number of other animal population in 
control and low in the entire ecosystem. They play an important role 
through this process and helps the food chain effectively.
dominant species - most common species; found often in the ecosystem.
invasive species - which fights for itself survival and can cause harm to 
ecosystem. non-native to an ecosystem
 
        
             
        
        
        
Answer:
Doctor Who official maker and lead author Steven Moffat stated: "Osgood is back, straight from her ongoing homicide toward the finish of last arrangement. "We as of late affirmed that Osgood was unquestionably dead and not returning - yet in a show about time travel, anything can occur.
Explanation: