Answer:
Homologous chromosomes are two pieces of DNA within a diploid organism which carry the same genes,
 
        
             
        
        
        
Answer:
Cellular Energy
Explanation:
Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration. Cellular energy is required to acheive this movement.
Hope this helps you!
 
        
             
        
        
        
Answer:
<h2>Yes, mammals are more closely related to reptilia or birds </h2><h3>Hope it helps </h3>