59. What is needed for the ecosystem to support the greatest variety of organisms over the longest period of time?
A. Variety of organism
B. Wide variety of animals
C. wide variety of bacteria
D. Wide variety of minerals
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Environmentally caused variations may result from one factor or the combined effects of several factors, such as climate, food supply, and actions of other organisms. Phenotypic variations also include stages in an organism's life cycle and seasonal variations in an individual
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