Final answer:
Wetlands are analogous to kidneys because they act as filters and help maintain the health and balance of their respective ecosystems.
Step-by-step explanation:
Wetlands are analogous to kidneys because they act as filters, similar to how kidneys filter waste and recycle nutrients. Wetlands help filter water, remove excess nutrients from runoff, and store excess water, just as kidneys filter blood, remove waste, and regulate the balance of ions and water in the body. Both wetlands and kidneys play crucial roles in maintaining the health and balance of their respective ecosystems.