<span>A plant's plastids contain its chlorophyll, which enables it to photosynthesize. If it lost the plastids, it would not be able to photosynthesize, which is the only way it can get food, so it would die.</span>
        
             
        
        
        
Answer:
Tachycardia
Explanation:
Bonus:
It's an abnormally fast heart rate.
Symptoms to watch out for are dizziness, weakness, and heart beat (the heart may beat more than 160 times per minute).
They are usually caused by a disruption in the heart's electrical system.
 
        
             
        
        
        
The seven steps of the scientific method start with observing the occurrence  or asking a question, researching the topic, forming a hypothesis, designing and conducting an experiment, analyzing results, drawing a conclusion and reporting results. 
 
        
                    
             
        
        
        
I haven't done biology in a long time but I am almost certain it is called a acrocentric chromosome.
        
             
        
        
        
Rubber factories, smoking cigarettes, and cars.