A large base with flexible structure would be best.  The base would hold up, and the flexible structure would prevent falling.
        
                    
             
        
        
        
Different people are affected by COVID-19 in various ways. The symptoms experienced by infected individuals have ranged widely, from little discomfort to serious sickness.
- The susceptibility to and prognosis of severe acute respiratory syndrome caused by coronavirus 2 or coronavirus disease 2019 (COVID-19) have been found to vary greatly amongst individuals and populations. 
- Intervention in public health must take into account these variations and how they affect susceptibility to infection and the severity of disease. 
- The distinctions between the COVID-19 case profiles from China and North America may be due to regional variations in host, environmental, and healthcare-related factors. 
- These inter-population variances, together with intra-population variability, highlight the need to identify how health inequities and inequalities affect the public health response to COVID-19 and can help with preparing for the epidemic's resurgence.
Learn more about the COVID-19 with the help of the given link:
brainly.com/question/28391554
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Answer:
Introduction Purpose: Explore the interdependence of organisms by  
performing an experiment with lima bean plants and earthworms. Question: How can the presence of one species benefit another in  
the same ecosystem?  
Hypothesis: If plants grow in soil containing worms, then the  
plant growth will be greater, because worms help decompose organic matter and distribute it through the soil in a form that plants can use.
Explanation:
 
        
             
        
        
        
It is a to my knowledge, but I will give an update when i find out
        
                    
             
        
        
        
Its is polar, meaning it has a positive and negetive end