Answer:
both models refer to the population but in different ways one major difference is that exponential growth starts slow then picks up as the population increases while logistics 
growth starts rapidly, then slows down after reaching the carrying capacity .
Explanation:
when resources are unlimited population exhibits exponential growth resulting in a j shaped curve 
 
        
             
        
        
        
Answer:
The first sign of trauma to the testicle or scrotum is most often severe pain. Pain around the testicle may also be due to infection or swelling of the epididymis ("epididymitis"). Because the epididymis has a very thin wall, it easily becomes red and swollen by infection or injury.
Explanation:
 
        
             
        
        
        
C. All cells arise form previously existing cells. This is because the scraped knee's cells would be replaced by the exact same ones that were removed. Kind of like "Out with the old and in with the new... yet the exact same..!" 
Hope this helps!
        
                    
             
        
        
        
Carbon is found in the atmosphere mostly as carbon dioxide.
        
             
        
        
        
At the smallest level of organization, the DNA wraps itself around small globular proteins called histones. Complexes of histones and DNA form nucleosomes, which appear as "beads" on the DNA strand. Chromatin refers to the decondensed DNA that has not formed separate chromosomes.