Answer:
ok
Explanation:
Simple sentences contains on independent clauses ,also called main clause ,that stands alone.
Complex sentences contains an independent clauses plus one or more dependent clause.
Compound Sentences contains two independent clauses joined with the coordinating conjugation and comma .AND IT'S ENGLISH QUESTION NOT OF BIOLOGY. 
 
        
             
        
        
        
Explanation:
The correct answer here is C
 
        
             
        
        
        
The answer may be A look man im just here for the points
        
             
        
        
        
Answer:
Most amphibians can breathe both through cutaneous respiration (through their skin) and buccal pumping - though some also retain gills as adults. Some aquatic salamanders (and all tadpoles) have gills and can breathe underwater thanks to them. The Mexican axolotl, for example, never loses its gills.
 
        
             
        
        
        
Explanation:
i can't see what u wrote can u please send a pic or something and like an example