RNA :) :) :) :) :) Just whati learnt term 1
        
                    
             
        
        
        
Answer:
When they grow bigger or there are some differences that haven't been there before? (Ex. Spots, stripes, Longer tusks)
Explanation:
I'm just thinking of this logically ok so don't know if this is correct but hope this helps.
 
        
             
        
        
        
Answer:
Option C.
Ocean acidification is the main ecological problem due to mariculture.
Explanation:
- Mariculture also known as the aquaculture that stands for the fish farming occupation.
- The main ecological problem that mariclture addresses is the environmental degradation especially the water pollution.
- Many studies suggests that the tradition of mariculture has been increasing the acidificaton in ocean water that is directly affecting the marine organisms and plants. 
- A build up of organic material beneath fish farms impacts the flora and fauna of an area.
- That makes drastic changes on sediment chemistry. 
 
        
             
        
        
        
A)amino acid is the correct answer
        
             
        
        
        
For the leaves to be presearved as fossil, they have to undergo a natural process of carbonization. This involves a slow chemical reaction with water over time that allows oxygen, nitrogen, and hydrogen to escape the leaves’ structure as gases leaving behind a carbon skeleton/film.