Answer:
u need to provide answer choices or an image
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Answer:
Most research uses both primary and secondary sources. They complement each other to help you build a convincing argument. Primary sources are more credible as evidence, but secondary sources show how your work relates to existing research.
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There you go, have an awesome daaay :)
 
        
             
        
        
        
Answer:
Sensory Adaption
Explanation:
Stimuli, both external and internal, are sensed with the help of sensory receptors. These sensory receptors sense the change in internal or external conditions called stimuli and send the information to the central nervous system. The sensory information is processed and interpreted in the central nervous system which in turn makes a person aware of the sensed stimuli. 
However, the constant presence of the same stimulus does not trigger the firing of the action potential as it occurred during the first few encounters. This is called sensory adaption. For example, chirping of birds is apparent when a person enters the countryside but becomes less apparent after a few days due to sensory adaption of ears.
 
        
             
        
        
        
The cell must double all the organelles and everything it contains so that when it splits in half the two daughter cells are the same as the original cell.
        
             
        
        
        
I think the answer is albumin hope this helps