Answer:
The carbon-dioxide exists in the atmosphere, and it is dissolved in the water. 
Explanation:
With the process of photosynthesis, it becomes organic, and by breathing, the organic gas goes back to carbon-dioxide. 
The assimilation of carbon is the process when the carbon-dioxide converts to organic carbon with the help of living organisms. This organic carbon is then used for energy.
 
        
             
        
        
        
Answer:
C
Explanation:
The answer is C i think but i ould be wrong
 
        
             
        
        
        
Answer:
Bacteria are eukaryotes 
They have a single DNA,circular chromosome 
Explanation:
It's their basic characteristics that they share .
 
        
             
        
        
        
Answer:
Cada gen puede tener varias variantes, llamadas alelos, que codifican diferentes variantes del rasgo en cuestión. ... Los genes residen en los cromosomas de una célula, cada uno de los cuales contiene muchos genes. Cada célula de cualquier organismo individual contiene el mismo conjunto de cromosomas.
Explanation: