a neurosecretory cell in the hypothalamus.
        
             
        
        
        
Answer:
1. nitrogen fixing bacteria soil converts excess "nitrates"
Explanation:
usually caused by low h2o, water movement and lack of minerals to filter water and kill bacteria..
2 primary components of septic system are tank and a septic pump to regulate waste and store it in a tank underground. when full, a service has to engage in emptying the tank or it will contaminate water supply...
 
        
                    
             
        
        
        
The smallest and most exclusive grouping category is species.
        
             
        
        
        
Answer will be germs like bacteria, virus, fungi, and protozoa that can cause disease
        
             
        
        
        
Answer: bedrock composition and climate 
Explanation: