The answer is B. Geology has shown a thin layer of iridium (a rare mineral on earth but found on asteroids and meteors) in the rock layers between the Cretaceous and Paleogene periods. Below this layer are numerous fossils of  pterosaurs and dinosaurs, but above the layer are drastically few. The aftermath of asteroid impact is believed to have smothered most vegetation from earth which dinosaurs depended on as a source of food.  
 
        
                    
             
        
        
        
Answer:
He experimented with peas (29,000 plants!) for seven years and used ... He found that everyone got two genes for each trait — one from the mom and one from the dad. ... Dominant traits show up even if you also have a different gene for the same trait; the gene ... Mendel took a tall pea plant and crossed it with a short one.
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The major function of RNA is B) To transport genetic information.
        
                    
             
        
        
        
Number one is sex cells are created
        
             
        
        
        
Answer:
Longer then is the answerrrrr