Answer and explanation;
-Stem cells, Adult stem cells and skin cells , have a similarities and they may also differ in a number of ways.
-A stem cell has not gone through the process of differentiation, so they have the potential to become any type of cell.
-Adult skin cells have gone through differentiation and cannot become another type of cell. Same case applies to the skin cells, they have already undergone differentiation;
-Similarity; The cells that are taken from the same person would have the same DNA. 
-Difference; The skin cells and the adult stem cells have already gone through differentiation, whereas embryonic stem cells have not. The different genes that the types of cells have are turned on and off causing the differences.
 
        
                    
             
        
        
        
Level 1 - Cells.
Level 2 - Tissues.
Level 3 - Organs.
Level 4 - Organ Systems.
Level 5 - Organisms.
        
             
        
        
        
Answer:
The most likely observed group composition of Primates is - Multi male.
Explanation:
- Primates belong to an order of mammals. They have large brains, complex behavior and they can use hands. E.g, humans, apes, monkeys, chimpanzees, gorilla, lemur, baboon, and orangutan.
- Sexual body size dimorphism means there is a difference in size between the two sexes. Mostly measured by the ratio of male and female body weight, body size. It also includes their mating system.
 
        
             
        
        
        
I have no clue on what you are talking about
        
             
        
        
        
Answer:
lysosomes
Explanation:
disease causing organisms (bacteria) is engulfed by process phagocytosis