The answer is true. Of all the numerous ways research can be directed, the best quality level of evidence where medications and treatments are concerned is the Randomized Controlled Trial. A Randomized Controlled Trial is a test or study directed such that whatever number wellsprings of predisposition as could reasonably be expected are expelled from the procedure.
        
             
        
        
        
in an ecosystem, everything works together  for everyone to be able to survive in a community everyone just lives together and it`s their choice whether or not they get along
<em>Hope this helps ✨ - Six</em>
 
        
             
        
        
        
Answer:
Chloroplast
1. Help in photosynthesis
2.Plant cell
3.It is where chlorophyll is formed and this chlorophyll traps sunlight for photosynthesis.
4. C6H12O6 + 6O2--------> 6CO2 + 6O2 + Energy
Mitochondria 
1.It posses it own DNA and also has a big surface area which makes it possible to generate more energy then supply them in the cells.
 
        
             
        
        
        
Answer:
add 2 electrons
Explanation:
 Add 2 electrons to carbide atom make it neutral because there are two unpaired electrons present in the carbide atom and it has -2 charge. So the carbide required two electrons for pairing and make the carbide atom neutral.  for adding two electrons its all unpaired electrons paired to other two electrons which complete its valency and make it a stable atom.
 
        
                    
             
        
        
        
During fertilization, a _sperm_ and _egg_ combine to form a _zygote_. 
Sperm and egg (gametes) are both haploid, and the fertilized zygote is diploid.