Answer:
I think when the earth was created it took a time. Then dinosaurs came. Then tey extinct because falling of asteroid on Earth.Then after a period of time the sea,mountains and other natural things were made again.
 
        
                    
             
        
        
        
Answer:
Explanation:
Each type of cell in a multicellular organism has slightly different DNA, allowing the different types of cells to specialize. ... The genes necessary for different types of cells to function segregate into different cell types in a multicellular organism.
 
        
             
        
        
        
Osmosis is the process that moves water molecules across the membrane of a cell.
Answer: D) osmosis. 
        
                    
             
        
        
        
It is possible that as the climate changes and as species are eliminated from an area we will see a change in some ecosystem functions; this could mean more land degradation, changes in agricultural productivity and a reduction in the quality of water delivered to human populations.
Climate change can alter where species live, how they interact, and the timing of biological events, which could fundamentally transform current ecosystems and food webs. Climate change can overwhelm the capacity of ecosystems to mitigate extreme events and disturbance, such as wildfires, floods, and drought.
Hope this helps :)
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