Yes, as scientists could figure out what might have changed in the variables she used. Brainliest me and I can give you the whole system.
        
                    
             
        
        
        
Answer:yes of course if we don’t the environment will die and undiscovered animals will become extinct and we can’t discover them till it’s too late and those polar bears are on thin ice and it’s not fair to them that they have to suffer for our choices
Explanation:
 
        
             
        
        
        
<span>What type of blood vessel is A?
The blood vessel is a artery
It carries blood away from the heart. Hope this helps. :)
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Some antibiotics can be naturally produced by fungi