Answer:
any of numerous complex proteins that are produced by living cells and catalyze specific biochemical reactions at body temperatures
 
        
                    
             
        
        
        
Red blood cells do not have a nucleus.
It does not consist of a cell membrane or a cytoplasm. 
It simply only transports oxygen around the body.
Pls mark me brainliest:)
        
             
        
        
        
Nitrogenous bases, double stranded, made of nucleotides, adenine, thymine, cytosine, guanine, A pairs with T, G pairs with C
        
             
        
        
        
Marshes and ponds is the correct answer