Answer:Variation in traits can be caused by variation in protein molecules within individuals' cells. Protein molecules' structures affect their function and the way they connect to other molecules.
Explanation: ^^^ hope it helps :)
 
        
             
        
        
        
Answer:
- Use bikes and non motor engines to get short distances BIKES is a good option. 
- Support electricaly charged vehicles
- Turn off your car when you are not driving
- Walk to school if you can
- Make sure to recycle paper
- reuse old notebooks that are not finished for the next year
- Get outdoors and spread your carbon dioxide
- try playing ball games and not video games so much becasue it means you use electricity that is generated by fossil 
- Turn off lights before bed
- dont keep the TV on all the time. 
Explanation:
Hope that helps :) 
 
        
             
        
        
        
Answer:
The result of the following cross indicates that the genotype of the female parent is- bb
 
        
             
        
        
        
The magma in the mantle rise through the crust above it because there is too much pressure in the mantle which causes the magma to rise. <span />