When cell division is not regulated it can cause a malignant rumour called cancer , radiation is used in chemotherapy to kill the cancer, tumoutsd can also be benign
        
             
        
        
        
Answer:
Genetic diversity is important because it could ensure that certain groups of individuals, species, or populations will be able to adapt to certain environmental factors. Thus, genetic variation helps the species in terms of its adaptability, survival, and its evolution
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A rigid cell wall is found in plants so they can hold themselves up. 
        
             
        
        
        
The Andes mountains running along the western edge of south america were formed by collisions between the south american plate which is continental and the nazca plate which is oceanic. The collision reasons the continental crust to clasp and form fold mountains which are then scattered with volcanoes produced by melting of nazca plate as it is enforced down into the earth’s mantle.