The greenhouse effect is Earth's greenhouse gasses trapping the sun's heat. <em>It helps keep the temperature in the atmosphere stable for life. </em>
 
        
                    
             
        
        
        
Answer:
D) Chromosomes can align in metaphase I in multiple possible arrangements in a process called independent assortment. 
Explanation:
 
        
                    
             
        
        
        
Answer:
c
Explanation:
Hubble's brilliant observation was that the red shift of galaxies was directly proportional to the distance of the galaxy from earth. That meant that things farther away from Earth were moving away faster. In other words, the universe must be expanding.
 
        
             
        
        
        
Organelles(or-gahn-lś)
Specifically means little organ but is sometimes commonly used as the Rank below the tissue in the cell body..They live inside the cell taking care of most of our bigger organisms. :)