Answer:
observational
Explanation:
she's paying close attention to her sister and what she's doing and how shes doing it
 
        
             
        
        
        
Answer:
The correct statment would be:  "the hormons of the endocrine system exert their action by lock and key mechanism."
Explanation:
The endoncrine system is responsable of the release of hormons under certain conditions, and in different organs, they go trough the bloodstream. The lock and key mechanism is explained as how the receptors block or release hormonos or instead they don´t. The endocrine system is responsable for the reproductive system, and regulates metabolic processes. 
 
        
             
        
        
        
Answer:
 sorry I don't know this answer. 
 
        
             
        
        
        
Answer:
For some time now, small but very active national environmental ... shining a light on others in the region hoping to benefit from offshore oil and gas. ... when it came to offshore exploration, risk assessment, disaster management ... while the Bahamas Petroleum Company remains optimistic about an area
Explanation:
 
        
             
        
        
        
Answer:
sometimes they do because their laws are not respected by other countries, some cases include presidents having trouble with each other, to the point where their biggest "solution" is to declare war
Explanation:
hope its helps