Answer:
nucleus 
Explanation:
eukaryotic has a nucleus, prokaryotic does not 
 
        
                    
             
        
        
        
Cell maintain homeostasis through diffusion in isotonic solution. Isotonic means that the concentrations are the same on either side of the membrane, maintaining homeostasis.
        
             
        
        
        
Answer:
17m/s
Explanation:
Given parameters: 
Speed of the bird  = 12.5m/s 
Speed of the wind  = 4.5m/s 
Unknown: 
Speed of the bird when it flies with the wind = ? 
Solution: 
The speed of the bird when it flies with the wind is the sum of the speed of the bird and the speed of the wind. 
   Speed of the bird with wind  = 12.5m/s + 4.5m/s  = 17m/s
 
        
             
        
        
        
Answer:
5. C. 3 only (Eukaryotic)
7. A. Active Transport 
Sorry I am unsure of 9. 
Explanation:
Hope those help tho
 
        
             
        
        
        
Answer:
When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between homologous chromosomes. ... It results in gametes that have unique combinations of chromosomes. In sexual reproduction, two gametes unite to produce an offspring.
Explanation: