The answer is D, The structure was probably functional in some ancestor of the modern organism. Vestigial structures are structures that have remained from ancestors but have no function in modern times.
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The amount of plants in the region would grow, but the amount of carnivores who eat the herbivores would diminish.
<u>Answer</u>:
1. Type of medium - the nutrient availability is one of the vital factors for the growth of a bacterial colony. Thus, the used growth medium will fulfill this requirement.
2. Incubation temperature - all bacteria have an optimal temperature range in which maximum growth is achieved. Any variations from this will result in negative effects on the amount of bacteria that are produced.
3. Moisture - bacteria thrive in moist or wet environments. Thus, the availability of moisture is another vital factor for the growth of the colony.
Its social behavior I do believe
