A patient presents with fatigue, leg paralysis, nerve damage and early signs of heart failure. Also pitting edema. Identify this deficiency disease and suggest the Vitamin that is deficient

answer; ///(a) ;

producers within ecosystems are essential as they are at the base of the food chain. plants are examples of producers. they use the process of photosynthesis to capture light energy and use it to convert simple inorganic substances (carbon dioxide and water) into organic substances (glucose).