Answer:
A is the correct answer 
Explanation:
the existed about 3.8to 4.0 billion years ago
 
        
             
        
        
        
The best and most correct answer among the choices provided by your question is the first choice or letter A. Margarines are products <span> made up of fatty acids that are derived from alkenes.
</span>The main ingredients in most margarines are vegetable oils like soybean or safflower oil.Vegetable oils<span> are mostly unsaturated, which is a problem because unsaturated oils are liquid at room temperature and cannot be used as spreads.
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ANSWER:
they dont make their own food only photosynthetic creatures can.
~batmans wife 
 
        
                    
             
        
        
        
In plants the reproductive structure that produces pollen and seeds is the xylem is the answer
        
             
        
        
        
Answer:
Watery, sometimes foul-smelling diarrhea that may alternate with soft, greasy stools.
Fatigue or malaise.
Abdominal cramps and bloating.
Gas or flatulence.
Nausea.
Weight loss.
Explanation:
because the parasite is traveling through the intestine(which is a very important body part in you body)