Brainstorm, draft, reread, revise, edit, final draft.
Conclusions should have a hook, bridge, and call to action and/or summary.
        
             
        
        
        
Answer: C. Radical global climate change.
Explanation:
The entire taxa of the species can be wiped out due to an large catastrophic event associated with the change in the climate. As the climate becomes warm the chances of undergoing the global precipitation rate will change. The climate being an important abiotic factor under unstability is likely to affect the amount of rainfall, snow fall, drought and conditions of desertification. All these factors can be responsible for the removal of the entire taxa of the species in short time. 
 
        
             
        
        
        
The source of the oxygen released into the air as a product of photosynthesis is C) Water only.
        
             
        
        
        
Answer:This is the exact answer so you might want to re-word it.
All the organisms an image one have a similar skeletal structure, with two legs, two arms, ribs, vertebrae, and similarly shaped skulls. However, the sizes and shapes these structures very among the species. For example, the hands of the chimpanzee, Gorilla, and orangutan are proportionally larger than the hands of the human but smaller than the hands of the gibbon.