Beets, carrots, turnips, onions, radishes, and (the odd one out) celeriac.
        
                    
             
        
        
        
Answer:
Changes in the environment may leave individuals less well adapted to compete successfully for resources such as food, water and mates. Sometimes an entire species may become unable to compete successfully and reproduce. These problems can lead to extinction.
 
        
             
        
        
        
Answer:
Polygenic traits are traits that are controlled by multiple genes instead of just one. The genes that control them may be located near each other or even on separate chromosomes. Some examples of polygenic traits are height, skin color, eye color, and hair color.
 
        
                    
             
        
        
        
Answer:
4. Methicillin is a strong antibiotic and MRSA developed resistance to it, making it harder to treat.
Explanation:
MRSA was first discovered in 1961. It's now resistant to methicillin, amoxicillin, penicillin, oxacillin, and other common antibiotics known as cephalosporins.
 
        
                    
             
        
        
        
Well its a little deeper than that. The oxygen transport is made through Hemoglobin (red blood cells) which is pumped from the heart