In natural selection, only the fittest organism are able to survive long enough to reproduce. Therefore, only these organisms pass on their genetic information, as they were "selected" by nature.
        
             
        
        
        
Answer:
He is having difficulty in the area of 4) pragmatics.
Explanation:
The term pragmatics was coined in the 1930s by psychologist Charles Morris. This subfield of linguistics studies the social language skills that we use in our interactions, how we produce and understand meanings through language while communicating with others. That means pragmatics analyzes not only what we say, but also the way we say it, our body language, facial expressions, gestures, and how appropriately we interact. It is this part that concerns Cade. He is able to express himself accurately, but still struggles with interacting with others in context. His difficulty, therefore, concerns pragmatics.
 
        
             
        
        
        
<span>D. Mexicans troops established a base in Texas.
</span>
        
                    
             
        
        
        
Answer: No
Explanation: Freedom of speech is a constitutional guarantee. But that doesn't mean it is absolute or not subject to some limitations. In a free society, however, the burden of proof should be on those who would curtail speech to prove that a particular form of expression would seriously encroach on other individual rights or create a health or safety risk.
Therefore, No I do not think we should have unlimited rights. 
 I Really hope this helps! 
 
        
             
        
        
        
The correct answer would be option D, Sleep Rebound.
After 32 hours of exhausting work, he makes it home and discovers he is unable to fall asleep no matter how hard he tries. Hamid may be experiencing Sleep Rebound.
Explanation:
Sleep Rebound is called as REM rebound. REM stands for Rapid Eye Movement. When there is a lengthening and increasing frequency and depth of rapid eye movement, and this occurs when there is a sleep deprivation, then this is called as the REM sleep rebound. 
So when Hamid had to wake up for more than 32 hours, due to his extra triple shifts at work, he tried hard to sleep after reaching home from this exhausting period, but was unable to sleep. This happened because he was awake for a lengthy period of time and due to sleep deprivation, now he is unable to sleep. So Hamid is experiencing Sleep Rebound. 
Learn more about sleep rebound at:
brainly.com/question/14155959
#LearnWithBrainly