Answer:
Chromosome structure consists of a long arm region and a short arm region connected at a central region known as a centromere. The ends of a chromosome are called telomeres. Duplicated or replicated chromosomes have the familiar X-shape and are composed of identical sister chromatids.
Explanation:
 
        
             
        
        
        
Answer:
Waste disposal
Why? Contributes to the greenhouse effect and causes pollution
Solution: If you bring your lunch to school, package it in reusable containers instead of disposable ones. Carry food in reusable plastic or cloth bags, and bring drinks in a thermos instead of disposable bottles or cartons. 
Solution: Compost leftover food
Hope this helps
 
        
             
        
        
        
Answer: cotyledon, seed leaf within the embryo of a seed.
 
        
             
        
        
        
Answer:the correct answer would be c
Explanation:I just did it 
 
        
                    
             
        
        
        
Answer:
No
Explanation:
It is because of the air it will crush it.