Answer:
True, True, True
Explanation:
Not exactly sure what you are asking, but I'm guessing you want confirmation.
 
        
             
        
        
        
The two groups are Tyrannosaurus Ornithomimus and Tyrannosaurus Coelophysis which are different from one another in shape and body structure. 
The word Ornithomimus means ''bird mimic,” because it resembles the bird i.e. they are toothless and had beaklike jaws while on the other hand,  Coelophysis means 'hollow form' and the specie has hollow limb bones that makes Coelophysis is a lightly body dinosaur that make it a fast hunter.
brainly.com/question/24373044
 
        
             
        
        
        
Answer:
Probably because they just need air to being able to live and have air going in and out like carbon dioxide and getting rid of used air.
 
        
             
        
        
        
Homeobox genes contain a particular DNA sequence that provides instructions for making a string of 60 protein building blocks (amino acids) known as the homeodomain. Most homeodomain-containing proteins act as transcription factors, which means they bind to and control the activity of other genes.
 
        
             
        
        
        
<span>If the middle groin was not constructed then there would be more erosion between the first and last groin. The middle groin must be constructed in order to fix the erosion between the two groins. If the first or the last groin was not constructed then the erosion will be less compared to the middle groin.</span>