Answer:
they contain chlorophyll which makes leaves green and absorbs sunlight.
 
        
                    
             
        
        
        
Answer:The excretory system is a close partner with both the circulatory and endocrine system. The circulatory system connection is obvious. Blood that circulates through the body passes through one of the two kidneys. Urea, uric acid, and water are removed from the blood and most of the water is put back into the system.
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Answer:
When the meteor hit a caused a chain reaction which caused all that and made some cloud that was toxic.
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X - linked traits appear more often in males because males only have one x chromosome. One copy of an x - linked trait is all that a male would need to possess that trait. Females have two x chromosomes, so they would require 2 copies of the x - linked trait in order to possess it.
        
             
        
        
        
The abdominal cavity is the answer you are looking for.