They have longer periods of revolution.
 
        
                    
             
        
        
        
Well lets see here, The definition of population is a particular section, group, or type of people or animals living in an area or country. So it would be D.<span>
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Answer:
Water can carry many different kinds of bacteria and possible diseases. It is important to treat the water correctly so these are not consumed. Having good water quality means having safe water to drink for all.
Explanation:
 
        
             
        
        
        
(D) Both perform photosynthesis is the observation that led researchers to propose that chloroplasts evolved from cyanobacteria.
Chloroplasts is the area where photosynthesis takes place. It is a green organelle in a plant cell. Pigments called the chloros in a chlorophyll are needed for the photosynthesis.
Cyanobacteria or blue-gree algae contains a blue photosynthetic pigment and a chlorophyll for photosynthesis.