Explanation:
Natural selection is the mechanism that is responsible for the evolution of organisms.  
In the given case, the Freshwater shrimp has been introduced to a pond in which the two species with variations are introduced.  
The <em>C. cantonensis </em>is brighter in color whereas the <em>C. multidentata</em> is mottled drab in color. The predator fish can feed easily on the species which is brighter therefore <em>C. cantonensis</em> is more susceptible. The mottled drab species is not easily predated by the species.  
The 30 % offsprings of <em>C. cantonensis</em> can survive till the reproductive age  whereas 75% of C. multidentata. This shows that natural selection has acted on the color of the shrimp species selected against the predator fish species.
The species with mottled drab color is the result of the differential reproductive rate.
 
        
             
        
        
        
Mid-ocen ridges is correct
        
             
        
        
        
Answer:
vermiform appendix
In human, vermiform appendix is the vestigial part of alimentary canal. Explanation: The vermiform appendix is a finger like structure which is connected to cecum, it is present in the junction of small and large intestine. This is known as the tail part of the human.
HOPED IT HELPED:) HAVE A NICE DAY<3
        
             
        
        
        
And the answer is A. worm 
The birds can eat with the worms.
It will help you.
        
             
        
        
        
TRUE because the earth and moon are always rotating, therefore we see different parts based on where we are at.