The answer is talked because it is something they are all participating in an action. 
     Hope its right, and if so, hope it helps!
        
                    
             
        
        
        
Props! Just answering so the first person can get the brain lies you promised.
But yes, props is correct!
        
                    
             
        
        
        
Answer:
It meant that she didn't have that many jobs to choose from since she was a black woman at the time meaning the only thing she could pursue is teaching since you needed to know stuff for it but luckily she got a job at NASA.
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Answer:
Distance learning is hard because (point a) there is less in-person contact with teachers and other students, (point b) students have to manage themselves all the time, and (point c) students have more access to their phone and computer at any given time, which means more students choose to mess around instead of paying attention in school. 
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Answer:
Yes. 
Explanation: I believe they are called specialized cells because they perform specialized jobs. Specialized cells create tissue, and tissue makes up our body. There are many different types of specialized cells such as Blood cells, reproductive cells, and nerve cells.