<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
        
             
        
        
        
The answer for this question is C
        
                    
             
        
        
        
C is the correct answer. > <em><u>is made mostly of hydrogen and helium</u></em>
- VY Canis Majoris is the largest star in the galaxy, not the Sun.
- We know the Sun will eventually die, it will not emit light and heat forever.
- The matter at the Sun's core is plasma, not nickel or iron.
 
        
                    
             
        
        
        
Answer:
C
Explanation:
It is more probable that the third one has a more developed sense of the vision with a large eye, and its movements. Also with a opened back to receive its nutrition and optic nerve.
Sources: 
Zihlman, Adrienne. (2006). «The Ape in the Tree». International Journal of Primatology (en inglés) 27 (4): 1227-1228
 
        
             
        
        
        
Answer:
central
Explanation:
the space is filled as central nervous system