What are the similarities and differences among a lake wetland and river?

Lakes, wetlands, and rivers are all aquatic ecosystems that support diverse plant and animal life. Similarities include their roles in water purification, habitat provision, and biodiversity support. However, lakes are typically standing bodies of water, wetlands are saturated areas that can be either permanent or temporary, and rivers are dynamic systems with flowing water. Additionally, wetlands often have unique soil and vegetation types due to their periodic flooding, while lakes and rivers can have varying depths and flow patterns.