Answer:
The detail from paragraph 5 or 6 that MOST strongly supports the inference that released iguanas could become a bigger problem in southern Florida in the future is If they feel threatened adult iguanas may become aggressive toward people.
Step-by-step explanation:
Paragraph six gives some examples of how the iguanas affect the life of people, these problems go from eating plants in their gardens, digging burrows, and carrying bacteria to a future possibility of having dangerous iguanas in their gardens and their streets when they become adults and might use their natural savage instincts.