Answer:
1. C
2. All cells of your body have the same DNA/genetic information but cell differentiation causes some genes to turn off and some to turn off. The activated genes are coded for which produce proteins and amino acids allowing cells to differentiate. E.g. Neurons and epithelial cell have same genetic information, however the genes coding for neurons in epithelial cells are turned off or deactivated which make them epithelial cells
 
        
             
        
        
        
Answer:
silica
Explanation:
Diatoms are microscopic organisms.  they have  shell that is made from organic compounds and silica.Diatoms contain silica in their cell walls. This material is used industrially in the production of toothpastes, silver polishes, and swimming pool filters. Silica is used to remove  stains and debris.
 
        
             
        
        
        
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Answer:
The correct answer is- The warm Gulf Stream helps maintain moderate temperature in coastal regions in southern Florida.
Explanation: