The nucleus of a cell in a prokaryotic cell and a eukaryotic cell
        
                    
             
        
        
        
Gametes, spores I think. I'm pretty sure that's it.
        
             
        
        
        
Yes...one dog has been observed to kill themselves purposefully.
        
                    
             
        
        
        
Answer:
China's Tang Dynasty gave rise to a new “golden age” by trading along the Silk ... the later Ming Dynasty built on that with expansion across most of Afro-Eurasia. ... Each dynasty, however, differed in how well they maintained control over such an ... Buddhism, and Confucianism—along with the traditional Chinese beliefs of
Explanation:
 
        
             
        
        
        
Answer:
The Grants's research shows that variation  within species increases the likelihood of the species' adapting to and surviving the environmental change.
Explanation:
The beaks of individual birds can change depending on what food is available.
Over time, individuals can evolve to better fit the environment by changing heritable traits.
Beak depth and length must affect survival and/or reproduction of birds.
  Beak depth and length must be heritable.
Beak depth and length must show variation among individuals of a single species.