Number 1 is fraternal (also known as dizygotic) 
also sorry i don't know the second one
        
                    
             
        
        
        
<span>Three anatomical features that birds share with their theropod ancestors are:
</span><span>1. they had light, hollow bones
</span>2. they rearranged hip and leg muscles because this of <span>improved bipedal movement
</span>3. they had their flight oriented with the use of wings for balance
        
             
        
        
        
<span>
Thin skin contains four layer(s) of keratinocytes, and thick skin contains five layers.
-4,5
-Hope this helps</span>
        
             
        
        
        
Answer:
 it protects aquatic life from changes in air temperature
Explanation:
 
        
                    
             
        
        
        
Waning gibbous
youre welcome