Normally a 10× drop for each trophic level, so I'd say 2,000 kilocal.
        
                    
             
        
        
        
F,  reason being that it wouldn't do it faster.
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A commensal bacterium does not infect its host, which is option D. Details about commensalism can be found below. 
<h3>What is commensalism?</h3>
Commensalism is a kind of relationship that involves the sharing of the same environment by two organisms where one species benefits and the other is unaffected.
For example, barnacles on whales is a commensalistic relationship. 
According to this question, a commensal bacterium will not affect or harm it's host by infect it neither will it benefit its host. 
Learn more about commensalism at: brainly.com/question/14224704
#SPJ1
 
        
             
        
        
        
Answer:
False humans can be classically conditioned.
Although humans learning something wouldn't general be considered classical conditioning but rather Cognition. That doesn’t mean they can’t “learn” via classical conditioning.
 
        
             
        
        
        
Answer:
Explanation:
Shutterstock. When the molten outer core cools and becomes solid, a very long time in the future, the Earth's magnetic field will disappear. When that happens, compasses will stop pointing north, birds will not know where to fly when they migrate, and the Earth's atmosphere will disappear