Hydrogen would be the answer to this.
        
             
        
        
        
Answer:
sporopollenin
While the exine is composed of sporopollenin, a complex and highly resistant biopolymer containing fatty acids, phenylpropanoids, phenolics and carotenoids, the intine is largely composed of pectin and cellulose.
Explanation:
 
        
             
        
        
        
Answer:
Codominant- when both are expressed like in flower red and white are codominant so they mixes to get a pinks flower.
Incomplete Dominants- is when a where cow and brown cow mix the offspring are brown with white patches 
 
        
             
        
        
        
Answer:
Turn a right on Mccallin Drive! Thank me later. ;)
Explanation: