Answer:E. 
Explanation:The MMR mostly affects children and if not administered vaccine in time to save a respond that prevent subsequent reoccurence of infection, it will lead to severity of infection (secondary infection ) probably if resurfaced at adult stage. 
 
        
             
        
        
        
Some of the conditions that must be met for Hardy-Weinberg equilibrium are:
<span>1. There must be the large population.</span>
2. The population must be isolated, thus there must be no migration.
<span>3. There must be no mutations.</span>
<span>4. There must be random mating.</span>
 
        
             
        
        
        
I'm pretty sure it's D, because I had something like this last week. but I'm sorry if it's wrong..
        
             
        
        
        
1- A light-dependent reaction 
2-A cellular respiration
 
        
                    
             
        
        
        
The solar system is composed of the sun and the planets. 
<h3>What is the solar system?</h3>
The solar system is composed of the sun and the planets. The sun lies at the center of the solar system and the planets move around  the earth in concentric circles.
Given that the earth is the only inhabited planet, it holds a central place in the solar system. The moon is a non luminous surface. It reflects the light that hits it from the sun to the earth.
The sun and other stars are the luminous bodies in the solar system.
Learn more about solar system:brainly.com/question/12075871
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