Answer:
(B). The drug is reabsorbed.
Explanation:
Renal clearance rate determines the excretion of drugs into the urine during excretion. It is used to study the main process associated with a drug's renal excretion. 
When the renal clearance rate is lower than GFR (glomerulus filtration rate), the drug is absorbed in the renal tubules. When the renal clearance rate is higher than GFR, the drug is secreted into the urine. When the renal clearance rate is equal to the GFR, the drug is neither reabsorbed nor secreted. 
As for given drug, renal clearance is 20 ml/min (less than GFR), this drug will reabsorbed. 
Thus, the correct answer is option (B). 
 
        
             
        
        
        
The group in an experiment that all the conditions stay the same is the control group.  
 
        
             
        
        
        
There are two types of respiration namely aerobic and anaerobic respiration. Anaerobic respiration requires oxygen while anaerobic respiration does not require oxygen. The products of anaerobic respiration (also referred to as fermentation) in yeast are carbon iv oxide and ethanol. Anaerobic respiration has a range of applications in the society which includes Brewing process (bear making process) in alcohol industry, bread making process( baking) in baking industry.
        
             
        
        
        
Answer: I think it is variation
Explanation:
 
        
             
        
        
        
Answer:
"Collectively the scent, colour and shape of petals all play a role in attracting/repelling specific pollinators and providing suitable conditions for pollinating. Some pollinators include insects, birds, bats and the wind."
-Google Wikipedia
Explanation: