Something that doesn’t depend on something else
        
                    
             
        
        
        
The correct answer among the choices listed above is option D. The connection between the mother and the embryo that provides the embryo with oxygen and nutrients and waste disposal is the placenta. Hope this answers your question. God Bless.
        
                    
             
        
        
        
When we discuss superposition in biology term then its principle tells that one by one rocks or sediments settles.The superposition mean that the older rocks or sediments place below all newly coming sediments or rocks place on first layer so layer over layer formation is called superposition. 
 
        
             
        
        
        
The more light absorbed, the quicker the photosynthesis rate.
        
             
        
        
        
Meiosis is divided into two stages. Homologous chromosomes align at the metaphase plate during Metaphase I, which is followed by Anaphase I, where they then separate to opposite poles.