A, An ancestor of whales had legs. Hope i helped! :D
        
             
        
        
        
The phrase "was really looking forward to it" creates the excited mood.
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The patient could possibly have contracted some sort of foreign disease or might simply have an intolerance to a certain protein such as gluten with celiacs disease.
        
             
        
        
        
Answer:
<em><u>Saprophytic</u></em>: The mode of nutrition in which organisms feed on dead and decaying matter. 
Example fungi.
<em>In saprotrophic mode of nutrition, the vital nutrients required for their body are collected from dead and decaying matter. The other organisms which are saprotrophic is Rhizopus, Yeast, and Mushroom.</em>