It is different types of species about .biological species concept, the phylogenetic species concept, and the morphological species (morphospecies) concept
        
             
        
        
        
Answer:
SER
Explanation:
Smooth Endoplasmic Reticulum
These are fat-based molecules that are important in energy storage, membrane structure, and communication (steroids can act as hormones). The smooth endoplasmic reticulum is also responsible for detoxifying the cell.
 
        
             
        
        
        
Answer:
<h2>They provide a 3’ end for the DNA polymerase.</h2>
Explanation:
Polymerase chain reaction (PCR) is an in-vitro method to making copies of a specific DNA sample in a very short time.  
Polymerase chain reaction was invented by Kary Mullis in 1983.
 Primers are specific to the DNA which we want to replicate and they bind to the specific sequence which is complementary to it. Primers provide a 3’ end for the DNA polymerase.
 
        
             
        
        
        
Answer:
answer is C spermatogenesis
 
        
                    
             
        
        
        
Answer:
 
if ur asking why here it is Scientists use observation to collect and record data, which enables them to construct and then test hypotheses and theories