D. A duck flies to another pond.
The above sentence is an example of emigration. Emigration refers to moving from one area to another for a long or permanent period. In this instance, a duck is leaving the pond it originally resided in (along a population other ducks) in order to reside in another pond. Therefore, it can be said that the duck "emigrated". 
        
                    
             
        
        
        
Answer: I guess its to not put waste in the ocean or just pick it up by a team or yourself.
 
        
             
        
        
        
Answer:
The cell cycle is the life cycle  
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They lack nuclei, so prokaryotes do not undergo mitosis.(instead they preform binary fission)
The cell produces organelles during _____I don't know how to answer this. While the answer is G2phase of interphase that wouldn't result in two diploid cells you would have to specify that mitosis produces two cells  
results in the formation of two new cells.
I hope I was somewhat helpful  
 
        
             
        
        
        
Raynaud's phenomenon refers to an ailment featured by blood vessel unusuality resulting due to overactivity of the smooth muscle in the wall of arteries, causing spasms (vasospasms with constriction) of the small vessels, which supply blood to the legs, arms, feet, and hands, and sometimes the nose and ears.
Thromboangiitis obliterans, also known as Buerger's disease and vasculitis, is characterized by thrombosis and inflammation of the small and medium arteries of the feet and legs that recurs and advances in phases.
 
        
             
        
        
        
Answer:
These techniques include x-rays, computed tomography (CT) scans, and magnetic resonance imaging (MRI). These imaging tools let your doctor "see" inside your body to get a "picture" of your bones, organs, muscles, tendons, nerves, and cartilage. This is a way the doctor can determine if there are any abnormalities.
Explanation:
hope it helps :)