Answer:
B
Explanation:
All living beings are in fact descendants of a unique ancestor commonly referred to as the last universal common ancestor (LUCA) of all life on Earth, according to modern evolutionary biology. Common descent is an effect of speciation, in which multiple species derive from a single ancestral population.
 
        
             
        
        
        
Answer:
(1) as organic molecules in living and dead organisms found in the biosphere; (2) as the gas carbon dioxide in the atmosphere
Explanation:
 
        
             
        
        
        
photosynthesis!!!
 Leaves from the plant absorb light from the sun. Leaves of plants also absorb the air that people breathe out, carbon dioxide
 
        
             
        
        
        
<span>The two tiles are not similar because segment PQ is to segment QR is 7 : 4 and segment JK is to segment KL is 4 : 3.</span>