This is the chronicle of evolution over millions of years of geologic time engraved in the order which fossils appear in rock strata.
        
             
        
        
        
The right answer is A. producer.
Phytoplankton are all cyanobacteria and microalgae (microscopic plants) present in surface waters and drifting with the currents. Unknown because invisible to the naked eye, phytoplankton is the lung of our planet. Thanks to photosynthesis, it produces more than half of the Earth's oxygen and consumes half of the carbon dioxide. Phytoplankton is essential for marine life because it is also at the base of the ocean food chain.
 
        
                    
             
        
        
        
Answer:
Option A, a compound that contains carbon atoms bound to other elements
Explanation:
An organic compound is one which has at least one carbon atom that is bonded to several other atoms (may be metallic or non metallic) by a single or double bond is termed as organic compound .  The most common atoms with which carbon forms bond are hydrogen, nitrogen,and oxygen. 
Some common examples are - 
Methane - 
Methanol - 
Hence, option A is correct
 
        
                    
             
        
        
        
A. is slowed by limiting factors. B. exhibits a period of rapid growth as the population size increases. ... Like logistic growth, exponential growth can be plotted in the shape of an S curve.